Monday, February 2, 2026

Scattered ideas about Underground and Cyberpunk

Having spent last week writing up a critique of my prior attempt. I thought I might put some more thought into it, but not a whole conversion process. Really, I could just decide to use Underground as a source of weird mutations. Like the Carbon Plague in Cybergenerations.

That and I lost my write-up of playin gthe Freeport Trilogy (adapted for Shadow of the Demon Lord) in SLA Industries 2E.

The core problem is the log scale. According to the Adventurers Club #8 for HERO, the conversion is a bit odd.
Underground was based on DC Heroes, in DC a point was a doubling of power. So, 2 was twice as good as 1 and 3 was twice 2, so four times as good as 1. This was the equivalent of adding 5 points to a HERO score. Hero had the human average be about 10 and the maximum be 20. Cyberpunk/Interlock had the average be about 5/6 and the maximum 10.
Underground wound that back so 3 points was a doubling of power, 0 was the human baseline and 6 was the normal human maximum. Leading to the bizarre equation:

Underground -> HERO-> Interlock

3 points = 5 = 2.5

This seemed wrong
So I worked from the human maximums

6 = 10

1 = y

6y = 10

y = 1.6

Giving me the following chart

1 = +1

2 = +3

3 = +5

4 = +6

5 = +8

6 = +10

7 = +11

8 = +13

9 = +14.4? We must make an exception here and round to 15

This at least allows us to calculate one power in Underground, you need 4 points in the Boosted [STAT] enhancement to advance 1 row on the above table. This all seems much too complicated with buying points to generate a second number to compare to the table to change the number and all the follow-on effects on the sheet.

 

Light Wound/Medium Wound/Heavy Wound, the description seems to imply a big deal for a LW and major deal for a HW. We could say 2/4/6 damage, the difference between something that will heal in a night to losing an entire health condition. But Cyberpunk doesn’t do fixed damage. So, I guess we could make them 1d6, 2d6 and 3d6 damage. Enough to send someone through Light, Serious and Critical wound boxes.

Accurecy would stay the same

Penetration mostly sems to be divisible by 3, but with remainers. Being +1 for a remainder of 2 and 0 for a remainder of 1. Since Cyberpunk doesn’t have penetration rules for bullets and just uses damage as the determiner. I would say the divided number is added to damage. Most weapons go LW/ME/HW/IN, except for the biggest weapons. So, I would add penetration damage/3 as the d6 and upgrade it to a d10 if it started with a MW instead of LW. Half accuracy number.

  9mm Walther antique (Cost: $2500, Avail: C) Accuracy: -2, Penetration: 9, Dmg: LW/MW/HW/IN

9/3 = 3d6 WA -1

30mm Silver Bullet SSF 2/30 (Cost: $6000, Avail: D) Accuracy: -4, Penetration: 18, Dmg: MW/MW/HW/IN

18/3 = 6d6, becomes 6d10 WA -2

 

Underground says difficulty chart is in human terms

Even money (Difficulty 0) in Cyberpunk is TN 15 (6 + 4 + a roll of 5 on 1d10)

Therefore 7 grades higher in Interlock’s stages of TN 5, is up to TN 50

 

Underground Skills, the ever reliable Listen Up You Primitive Screwheads is required reading for telling us the average skill is 4 not 5, because rolling 1d10 for a stat makes the stat 6, in the stat + skill Interlock system. So, an Underground Difficulty of 3 is an Interlock 4.

3- avg (4)

4/5 - (5)

6 - good (6)

7/8 - (7)

9 - expert (8)

10/11 - (9)

12 - legend (10)

 

At some point I would need to sit down and work out how all this fits together and with the Unit Chart. Before even looking at all the intricacies of how the powers worked. But really this is just some scattered thoughts.

Sunday, February 1, 2026

Not Converting Underground to Cyberpunk 2020

 

(You have to love the art, by Geoff Darrow, colours by Florence Breton)

I’ve written several conversion procedures, but here’s one from my folder I never really came back to after finishing. As it’s blatantly broken and an example of how I failed to make the conversion work. My notes will be in Bold so they can be seen.

 

Lower power but keep the theme that vets are emotionally unstable and very powerful.

This turned out to be an exercise in number management, as in the Cyberpunk/Interlock system where humanity loss was random, the loss here ended up being very fixed. So, it was open to min-maxing.

Converting rolls

P/F rolls become Opposed Tasks

F-D-C-B-A rolls start at F = Failed to roll above the Task Difficulty, D = rolled above Task Difficulty but not 5 above Difficulty, C = rolled Difficulty +5, B = rolled Difficulty +10, A = rolled Difficulty +15

So since Interlock had +10 being the max for skills and stats, the only way to get an A rank would have been to max out these things or get massive number of stat enhancements and then roll a 10.

Nothing on damage though, the core system proved too much before I could tackle it.

Converting Characteristics

Underground

Cyberpunk 2020

(STR+RES)/2

BT

DEX

REF

SPD

MA

INT

INT

WILL

COOL

AURA

EMP

TECH, ATTR and LUCK will have to be determined as normal

Units generally don’t convert well but assume that the Unit value of 0 is Cyberpunk value of 5 and each new Unit is +1.

A complete lie, I was trying to cram a logarithmic system, where every 3 points doubled into a linear system. But eyeballing it meant 0 = 5/6 and 6 = 10.

New Role

Surp-Super

Special Stat: POWER: This skill is the cap on the number added when rolling to use super-power and also determines how much money was spent on surgery and psychological treatment.

Skills: Can take one of the Solo, Cop, Techie or Med-Tech Career skill lists assuming that no specialized military Roles are being used from a supplement.

Very broad and if I had come back to it, I would have made a custom skill or told everyone to use the Solo skills.

The Surp-Super gets R&D money according to his POWER like a Solo but at x 10, his actually starting money is 500eb per month from the Department of Veterans Affairs.

I could have done a proper conversion of Underground to EuroBucks, but I think that would have been just eyeballing it.

Acquiring Powers

The future surplus hero divides the money between the different Enhancements that he was granted and as a bonus to the psychological treatments that followed each.

Each enhancement from the Underground book costs Base Cost + (Number of Units above 1 x Potency Value) x 100, If the bonus or limitation is taken the Base cost is doubled or halved (rounding down).

More mangling of a logarithmic number scale into a linear process. Especially as this isn’t even how the power-buying in Underground worked. You paid Base Cost + What the Rank/Potency chart said.

Every Enhancement has a Stress Rating which factors into determining Humanity Loss during the psychologist phase. This rating is always a minimum of 1. The Trauma listed for each enhancement is a helpful roleplaying guide.

Psychological Consoling

Every enhancement has a separately track stress rating and the Surp-Super must pass a roll with the help of a Psychologist to reduce them. The Surp-Super rolls d10+ COOL +1 for every 1000eb spent of psychological treatment vs Task Difficulty 10 + POWER. For every 5 more the Surp-Super exceeds the Difficulty, reduce the stress of that enhancement by 1.

Making everything in blocks of 1,000eb instead of $100,000 ended up massively inflating the number of powers someone could have. It also meant Cybernetics remained a vastly cheaper option, especially BOD-boosting stuff like Muscle and Bone Lace.

Once all psychological treatment rolls have been made, multiply the stress by 10 and round to nearest 5, and count that as Humanity Loss.

Isn’t it easier to Boost them?

Yes, many Surp-Supers have cyber-ware or bio-ware implanted as well to be cost effective. However this still comes out of the money allocated to enhancements.

May as well made the power of these superhero to take Cyberware as half cost-Bioware.

Activating an Enhancement

When a Surp-Super uses an ability, they roll the Most Relevant Ability (usually listed in Enhancement Description) + Enhancement Bonus (up to a rating equal to the POWER special skill). If an Enhancement grants Stress, the Stress builds each round activated the power is activated until it reaches the POWER rating and starts translating into Humanity Loss.

Doesn’t match at all how Underground powers were bought or used and since I was relying on the Unit total straight from Underground, restricting things POWER (capped at 10) made this completely unworkable.


The all powerful Benchmark table, which drove Underground and I would have to refit for Cybewrpunk if I was to do this again.


Sample Surp-Sup

Man-Dar, the Human RADAR, Stats 6s across the board

POWER 6

R&D money 3,000 x 10 = 30,000

6,000 set aside for Psychology treatment


5 + (6 x 3) x 100, bonus x 2

23 x 100 x 2 = 4600 to install 6/3 = 2 Stress

Rolls 10 + 1d10 vs Whatever the Referee decides for each item

D – TN to TN+4: 2 Turns

C – TN+5 to TN+9: 10 Minutes

B – TN+10 to TN+14: 1 Hour
A – TN+15: Permanent



5 + (6 x 1) x 100, bonus x 2 = 1100 to install, 6/6 = 1 Stress

Range Unit +5 = 15 on the chart is 100 yards/metres


5 + (6 x 1) x 100, No limitation = 2500, Stress 6/8 = 0.75, Range 40 feet/12 meters

(The colour is becuase I copied it from the corebook not the players handbook, which was a worse scan)

5 + (6 x 2) x 100, bonus x 2 = 3400, Stress 6/5 = 1.2

30,000 – 2700 – 2500 – 3000 – 7000 = 14,800 – 6000 (therapy) = 8800 for cyberware

Neuralware Processor -1000/ 1d6

Sandevistan Speedware -1600/ 1d6/2

Smartgun Link -100/ 2

Vehicle Link -100/ 3

Linear Sigma -6000/ 2d6

Way more effective in game than buying up powers with the exception of the Awareness-replacing powers since that just automatically overruled and won a portion of the combat procedure.

d10+ COOL (let’s say a generic 6) +(1 x 6[000]) vs Task Difficulty 10 + POWER (6) For each enhancement. For every 5 more the Surp-Super exceeds the Difficulty, reduce the stress of that enhancement by 1.

EM Pulse 4 + 6 + 6 vs TN 16, No change

Energy Detection 6 + 6 + 6 vs TN 16, No change

Night Vision 4 + 6 + 6 vs TN 16, No change

Danger Sense 8 + 6 + 6 vs 16, No change

Once all psychological treatment rolls have been made, count stress as Humanity Loss.

(2 + 1 + 0.8 +1.2) x 10 = 50 before Cyberware (2+3+[5]+[2]+[8]) = 20

So, a total of 70 HL or lowering the rolled EMP by 7. Poor Man-Dar is a Cyber-Psycho and should have pumped up that EMP to 10 at start of play, as per Cyberpunk 2020’s meta.

The exact flaw of this attempt right here. Enhancements make high EMP mandatory much more than Cybernetics for not as much benefit.

The Overall flaw was having figured out that I wanted powers, not bothering to actually see how powers worked in relation to the rest of the rules. And then trying to cram it into a system where the baselines were totally different.

Will I do this again? Who knows, I have other things that take a higher priority.

Tuesday, January 27, 2026

Antarctica Adventure Jam Dungeon 3

 Starting to get a little bit under the pump at home and hobby. That unfortunetly means the dungeons are having to be shortened, with only the juiciest parts and the spaces between.

### 302-565

A deep pit that is never filled with water. Three towns and travellers dump their rubbish there. Since there are hollows in the walls, it must be an opening to a network of caves and so is notorious for a place to hide for man and monster.

              The visitors throw trash from the top, landing in the stagnant pool some 40 feet below. There is a pinch at 20 feet which obscures the lower level from view, and it is not mentioned. A ramp descends in a spiral from the lip. All caverns are 10 feet high, roughly fashioned from hardpacked dirt and loose rock, vaguely circular and lightless. Unless otherwise noted.

### Any dimensions not stated are assumed to be 10 feet. The ceiling is assumed to be 10 feet high. Unless otherwise stated, all doors are stuck but can be retried once per turn.

Descriptions in the Before language/writing are labelled BFTXT

## Level 1 (2nd Level Dungeon)


### One enters from the South/Top side of Room 11 and progressed down in a spiral to Level 2 Room 13.

### Random Encounters

1 – 1d6 Robber Flies, replace with 1d4 Draco Lizards if Room 1 cleared, if defeated, reroll

2 – 1d8 Pit Vipers

3 – 2d4 Zombies of berserkers and gnolls

4 – 1d6 Gnolls scavenging, replace with 1d6 Berserkers if Room 14 cleared, replace Berserkers with 6+1d6 Wild Dogs (Wolf) if Room 15 cleared as well.

5 – 8+1d8 Bandits exploring rumours of treasure, if defeated, reroll

6 – 4+1d4 Red Wyrms of Rage (Giant Centipede)

1.       The cave end stinks of rotting meat and a deep buzz can be heard.

Five Robber Flies nest here, the pieces of fleshy detritus thrown or killed in the pit occasionally sticking to their extremities. Amid the rot is 28gp, chewed but not digested.

2.       In the blackness, a fierce roaring and fire greets the first character to enter the chamber. Entering causes an illusion of first sinister, glowing reptilian eyes, then the head of a foul dragon or the hydra itself, spewing fire and fury (Antarctica Adventure Jam Bestiary). Engaging the characters.

The monster has AC 9 [10] and vanishes if hit in combat. Its attacks do not inflict real damage: a PC who appears to die just falls unconscious for 1d4 turns.

The illusion is caused by the patterns of stones upon the ground forming a network of interlocking herringbone patterns and loops.

Scattered among the debris, thrown by fleeing explorers is 600sp, 300gp and a clay pot containing a Potion of Speed.

3.       A dank chamber, where obscene graffiti, proclaiming the doom of the pale sun is spread over the walls. Each white or yellow sun rising to head height, is thrown down by an ill-defined humanoid figure and converges as a red skull at the far end, ringed with black serpents.

Studying the red skull gives a find secret doors roll and leads to Room 12.

4.       A dry cave entrance facing the rising sun, stretching back into the limestone. A scattering of loose scree and tough grasses make the ground uneven. Nestled inside are 6 Pit Vipers. If it just after dawn, they are clearly visible as they sun themselves.

5.       A chimney descending some 10 feet below and at a slant of 90 degrees. Wide enough for 3 people, with no handholds on the melted smooth rock. The bottom 3 feet are stained a deep ochre and there is a thickened yet powdery residue on the wall and floor.

The cave bottoms out into a space about 5 feet wide and high with a crawlspace to Room 6.
A party knowledgeable about slimes and oozes would be able to deduce this is the remnants of an Ochre Jelly which succumb to something here.

6.       Any pooling water from the walls is absorbed into the patches of cave fungus, otherwise not even dirt. The rock is very straight and regular except for a jagged and collapsed celling vault.

7.       The walls and ceiling are straight and orderly, forming a series of vaults above and obviously non-natural. A circle of white stone is embedded in the floor here; it seems to be marked with curving grooves.

A Cleric or Magic User with an Intelligence of 12 or higher automatically knows these are marking for the rise and fall of the moon. Stepping onto the circle teleports the individual to Level 2, Room 8.

8.       A tunnel terminates some five feet in a door. The door is emblazoned with the polar constellations of the modern age, raised from the surface. On Uldore, this is various animals and farming tools. Pressing the different constellations has a 2 in 6 chance each time of triggering the scythe trap to swing from the left. A few rusted daggers and wooden stakes doing 1d8 damage. The fake door is just pushed against the rock face.

9.       A dry cave entrance lit by the noon and evening sun. Highlighting the limestone darkness beyond. Uneven footing between the scree and tough grasses. Nestled inside are 5 Pit Vipers. If noon, they are clearly visible as they sun themselves.

10.   A cave straight walled but crumbled ceiling. It stinks of rotting flesh and 13 figures stare at the walls. 7 humans and 6 mantis-headed gnolls. Now all Zombies, who attack immediately after detecting entry. The human bodies have guts ripped from the inside.

11.   This large ramp of earth winds around the inside of the rubbish pit. Dipping beneath the lip, as the rock gives way to scree and dirt. Held together with shrubby plants arranged in noonday alignment. Regular large cave entrances can be seen from the descent, otherwise hidden from the lip. At the bottom of the spiral, is the second lip, and a steeper decline.

12.   A narrow tunnel with sections only wide enough for a single person. The running from Room 3 to Room 13. Lots of crude skull motifs, though they are generations old and flake from breath.
There is a branch halfway along, big enough for a person to crawl through. This is the entrance to Room 15.

13.   The room contains a transition between straight-cut walls and natural cave. Fading into rough stone as it progresses away from Room 16. The tunnel entrance to Room 12 is some five feet above the ground and behind a fold in the rock. Visible only from reaching the far end.

14.   A cave entrance into the limestone. With only partial light from even the noonday sun, the interior is smelt, heard and felt rather than seen. Unwashed bodies, clicking and malice.

Squatting in the back of the cave are 15 Gnolls. Chewing on what look to be human bones and insect chitin.
If they fail to detect the party, they are all observing a tunnel winding deeper inside.
At their feet are 2000gp of indigestible trinkets. Mostly coins, armbands and necklaces.

15.   Here fitfully sleep and pace 9 Berserkers. Occasionally running into each other and twisting on the ground as the wyrm writhes inside them. As per the Bestiary, the Red Wyrm of Rage will burst from them if they are slain (Giant Centipede).

Some wear tattered armour and fine clothes; others dress in disintegrated rags. They are all focused on the entrance to Room 16.

Amid the gnoll-blood they still wear some treasure. 1000cp, 4000sp and 1000gp in coins, armbands and clasps. Jewellery: 3 x 800gp, 2 x 900gp and 1200gp and a Sword +1 in the hand of one.
That Berserker is dressed as though he is from across the Sunrise Strait and his body has a blue diamond tattoo on the shoulder.

16.   This cave is worn straight and regular, with a carefully constructed vault above. Carved depictions of strange beasts decorate the wall. Though a widely travelled character might recognise them as dragons and dinosaurs of the Before Kingdom.

In the centre of the room is the powdered remains of some yellow-brick benches and a raised pool. Seemingly lifted out of the surrounding rock but lined with yellow brick on the inside. There are 1d4 draughts of iridescent yet clear liquid remaining. There is a 50% of a Potion of Gaseous From and 50% of a Potion of Poison with each draught.

17.   A tunnel, wide enough for two abreast takes several tight turns. Each turn is stained with blood, and the tunnel smells like iron and death. A dead gnoll blocks the way on the final turn to Room 16. A side-passage, viewable from Room 16, leads to Room 20.

18.   In this chimney some 10 feet high is 300sp and 400gp in a wall nook. In the form of coins from across the Sunrise Sea, trade bars and figural jewellery (cow, pig, penguin, fish, horse). A bandit hoard who no one ever reclaimed.

19.   This tunnel is only big enough to admit one person crawling at a time. The tunnel widens to a small space where a human can stand and turn around. A Detect Secret Doors roll will reveal a nook in the ceiling containing Room 18.

20.   A wide cave where water has begun to erode the straight walls and celing back to a natural cave. This has destabilised the roof and for each character who enters, there is a 2 in 6 chance of a falling block hitting that character. Doing 1d10 damage if they do not Save vs Petrification.

21.   In the dim light are people milling around. If hailed they turn as one and advance to attack. Stumbling around and butting heads until then are 13 zombies, 8 humans with tore bowls and 5 gnolls. Remnants of a previous stage of the fight.

22.   This straight-walled room is dustless. A decoration of screaming cows, pigs and human faces surround the door beyond.

Spread out on the floor is a Grey Ooze, which rises to attack whatever walks upon it.

23.   This straight-walled room consists of eight yellow-brick vats, rising to waist-height. Though one has a broken side, spilling grey powder on the floor. The grey ooze dwelt here, but was displaced by a past earthquake, which broke the vat and release a toxic gas.

Any who step inside this room must Save vs Poison or die.

24.   This straight-walled room has a jagged and tenuously ceiling. Buttressed by its own weight between the half-fallen blocks.

Whichever door is opened causes a cave-in as the falling blocks seal off that passage. Once the character explore halfway into the room.

## Level 2 (3rd Level Dungeon)

### Random Encounters

1 – 1d6 Tiger Beetles, if Room 13 cleared, replace with 6+d6 Robber Flies, if defeated, reroll

2 – 1d6 Harpies, if Room 5 cleared, replace with 1d4 Medium on the prowl for threats, if Room 10 is cleared, replace with 8+1d4 Red Wyrms of Rage (Giant Centipede)

3 – 1d6 Crystal Statues, pretending to be bodies of beetles and dogs on the floor, if Room 12 cleared, replace with 3+2d3 Giant Geckos

4 – 1d8 Shadows, moaning in strange languages and fearfully avoiding inhabited rooms. Reroll if in a room that is or was inhabited

1.       Narrowing into the rock is a path. First wide enough for a crawl then a tight squeeze for even a small being. Finally, it ends in a dead end and anything that has gotten this far must be pulled out or pass a Save vs Petrification once per round to escape.

2.       A shaft descends for 10 feet before abruptly stopping, the bottom 5 feet filled with stagnant water. Halfway down is a crawlspace leading to Room 1.

3.       A Chimney that rises 15 feet from Room 8 to Room 5, at a 45-degree angle. Requiring rope or two hands to climb. The walls were once smooth and notched. But something has clawed and worn away at the holds.

4.       Natural walls and ceiling but the otherwise empty cave has a worked smoothed floor. A door at the end is fake if examined.

Halfway into the cave is a trapdoor that activates when more than 1 person enters the room, the whole floor tips into a slide that deposits those in the room into Room 5.

5.       This cave reeks of insect droppings. No matter what the walls and ceiling were once like, everything not fouled with waste is covered in claw and mandible marks. If the characters surprise the 5 Harpies. They find them willowy destroyers in separate nests of sticky powder, bone fragments and scrub. Otherwise, the insectoids descend from the ceiling, making their discombobulating harmonics.

In the nests are gems worth 3 x 10gp and 500gp of gold coins and trinkets.

6.       A smoothed room where some carvings have been defaced by the harpies. Whatever information could have been gathered has been vandalised beyond recovery.

7.       A rough cave with a crude idol depicting a strange combination of fish and mammal
If approached within a couple of feet (effectively touching or closely inspecting) it speaks in the language of the Eastern sailors.
“Beware! This is a land of birds!”

8.       The long walls and ceiling are straight and orderly, forming a series of vaults above and obviously non-natural. A series of circles embedded in the floor are defaced with a single cleave in the stonework, except one. All are marked with curving grooves.

A Cleric or Magic User with an Intelligence of 12 or higher automatically knows these are marking for the rise and fall of the moon. Stepping onto the circle teleports the individual to Level 1, Room 7.

9.       A worked room stripped bare and rubble pushed into corners. Alone in the middle is a large crystal shard crudely imbedded into a pot. When anyone enters the room, the crystal flashes once. Expecting a counterflash. If not, the crystal glows and the pot shatters, releasing a cloud of poisonous gas that fills the room. Save vs Poison o die.

10.   This worked room is well lit, with wooden furniture in recent styles of the interior of Uldoore. Among the bedstands, chests and clothe stands, is piles of scrolls and clay tablets.

Seven men and woman are busy if surprised, consulting various documents by candlelight or washing robes.

These 7 Mediums will demand an explanation for why they have been intruded on and will act in a haughty manner to disguise the fact they are a monastic cult, centred on the creature in Room 11. If the characters insult, refuse to leave or accuse them of being a sinister cult, the mediums attack.

In total, they have 67sp stashed in their chests.

Each carries a crystal they use to counterflash the shard in Room 9. It requires some form of magical class to activate.

The scrolls and tablets describe the mechanisms of the teleporters in Level 1, Room 7 and Level 2, Room 8. They also reveal this used to be a Before experiment site, where teleportation magic was used to acquire and send samples from anywhere on the continent and the waters girting it. When the Titans buried the complex with the new sun, only one researcher, the Reverend Mother survived to see new angles to the universe and achieved immortality.
Each knows only one of these spells: Read Magic x 2, Ventriloquism, Detect Magic x 2, Floating Disc, Sleep.

11.   Lavish and well lit, with tables, curtained bed and chests, many gewgaws and mirrored metal on the walls. So, servants can speak without suffering.

An oracle of the past and a foreteller of the future is the leader of this obscure group. A shapely ornate robe and veil do not hide the stilled movement of unnatural age. This is another obscuration; the Medusa is inhuman fast. Should she suffer more than half her HP in damage, she screams and surviving 5 Crystal Statues from Room 12 or the 7 Mediums from Room 10 arrive next round.

On a table is a Crystal Ball, centrepiece of study. On the wall is a Shield +1, made of reflective green glass. Behind is a crawlspace to Room 17. A foreign pot on the chest holds a Potion of Invulnerability. Inside the chest are two Spell Scrolls written in the language of Before.
BFTXT: Long Night Survival For Spirit Summoners – Create Water, Curse, Remove Curse, Bless, Resist Cold
BFTEXT: Sun Studies – Contact Higher Plane, Detect Magic (MU), Levitate, Clairvoyance, Continual Light

12.   A dark room worked but dusty. A series of statues line the walls, five in total, each in some form of pose of grief or anger. On the centre of the floor, picked out in homemade clay paint is the words: To Not Die, Command Them With Authority.

This is a lie; the 5 Crystal Statues obey no one but the Medusa in Room 12 ad attack as soon as they are interacted with or the party reaches the middle of the room.
These statues in the light are less crystal and more crystallised, the same few frames of finality repeated in a stuttering loop. The Oracle’s displeasure and her survivor’s curse.

13.   Here is the bottom of the pit, an hourglass funnel where the edges are hidden in darkness from the central shaft. The ground is covered in stinking and rotting refuse and mould. Strange mushrooms twist around rubble and mould obscures the sucking mud.

Movement is reduced by 20 feet for all characters and humanoids.

The 6 Tiger Beetles which feed on the detritivores and falling scraps have no restriction and scuttle forward into the light to feast.

14.   A long rising passage, whoever goes first hears a pop like a bubble of soap at the halfway mark.
They must make a Save vs Petrification or suffer 1d10 damage from the falling stones ahead of them pouring down.

15.   This rough chamber bears faint cracks all around, as if from a freeze-thaw cycle. Each player who enters has a 2 in 6 chance of hearing a popping noise, followed by a long thin bone scything out of a crack in the ceiling for 1d8 damage.

The bone has no means of support, but for each strike it drops out of the crack until it has struck 6 times. When it falls to the ground, inert.

16.   The cave is cold, as if the long winter night has seeped in and never left. A small pile of clothes lay in a corner.

Here lies 1 Doppelganger, who has hidden from the sun for many years, venturing out in winter to acquire treasure and kills, as many men wished in their hearts they did. The false-thing is cunning and will take the form of whatever person it feels would get the most sympathy from victims. But always pretending to be a delving merchant or explorer who has become trapped by the fighting, now nearly hypothermic. And with sunken cheeks and belly pulled so taught from hunger they cannot seem to walk.

To show proof of intentions, it shows the 800gp piece of jewellery it keeps for such a purpose, an elaborate torc engraved with seals and penguins. It targets whoever takes it from them first with a seemingly mad savagery. As if reclaiming it. On death it liquifies into water then becomes vapour.

17.   A pit some 20 feet deep. Ten feet away is an entrance to another cave, the walls are rough. Hidden at the bottom of the shaft is a black cloak, visible only with 1 in 6 chances from above or if ones searches the bottom by hand.

Beneath it is: 3000sp, 600gp and Jewellery worth: 500gp, 900gp and 1000gp.

Monday, January 26, 2026

AD&D 2E Skills & Powers Racial Abilities

As D&D 2E stumbled through the 90s and TSR’s final collapse at the end, a curios idea took hold that would eventually bloom into 3rd Edition in 2000. Innovation based on what the players wanted. This ended up drawing a lot from Rolemaster, a more complicated game that itself had started as expanded critical hits and combat tables for AD&D 1E. Thus, the Player’s Options book line was born. A whole revision of D&D giving absolute control over building a character and the degree of complexity for a game. From grid combat to breaking each stat into two, there was a bevy of options, some of which got incorporated into 3E.

Quite a few people look back on them fondly but just as many people dislike them for taking a game that regulated itself with random rolls and removing that. This seems to be anecdotally split between players and DMs.

Well regardless of the original intent, TSR floundered and 3E was made by Wizards of the Coast, based again, more on Rolemaster with Feats and a roll over unified mechanic. But I wanted to know how much it was carried over from 2E. Based on an anecdotal comment that 3E’s party balance issues never came up in playtesting as the designers of 3E playtested it like a 2E game.

So, I read through all the starting Character Options, as those were closest to Feats with getting into the weirdness of Non-Weapon Proficiencies sometime being skills or what later editions would term feats.

Character races got a certain amount of Character Points, of which they could only keep some ad so were encouraged to spend them. They were presented with the different races and variants of those races. With a point breakdown of their racial abilities. And therefore, they could mix and match, to their hearts’ content. Notably Half-Orcs returned as a core option along with Half-Ogres, the race Gygax created in Dragon Magazine but never really took off.

Since many of these powers overlapped, I had hoped to establish a generic list and see if things changed between races. In classic TSR fashion, it wasn’t just that these abilities were cost differently between races, the abilities themselves were not standardized. Just being the original racial abilities from 2E and 1E with a rough point cost.

Generally, a +1 attack bonus with a specific single weapon was worth the minimum of 5 points. Unless you are an Elf, who gets the +1 to both Long and Short Swords for 5 points. The same for a +1 for damage from a specific weapon, but only Half-Orcs seem to be able to do that.

Elves get a cooshee or an elven cat for the same 10 points a gnome can use friendly burrowing animal. That’s two double-stacked points in favour of an Elf and Half Elves don’t even get either bonus.

Bonuses to Non-Weapon Proficiencies were worth about 5 points for +2, as was any racial ability that mimicked a level 1 spell or gave a +2 bonus to a non-combat effect. The few saving bonuses from AD&D were also priced at 5 points per +1.

Any ability was otherwise priced at 10 points, especially if it could be halved in effectiveness for another race for 5 points. Like Infravision being 5 for point for the Halfling subtypes that got 30 feet of it, and not the regular 60 feet of other races. Or Half Orcs getting fewer natural abilities to detect underground construction.

Suprise bonuses were all just as idiosyncratic and unchanged from AD&D.

The outliers of interest were the Human only ability to get an extra 10% XP for 10 points. Which is itself a common houserule for not capping Demi-human (not human) race levels. Humans can get the Half-Ogre ability of a natural 8 AC, something that has only ever appeared here, though at 10 points and not 5 points. Which I think is odd, because 10 points feels like the right amount for something as important as AC in AD&D. Maybe they just considered it to be a small combat ability as it's the opposite of a +1 to a weapon attack.

 

In summery, there is no real consistency, which explains why 3E basically copied Rolemaster’s ideas rather than go through thee rigmarole of straightening out 2E Skill and Powers.

Monday, January 12, 2026

Converting Tunnels & Trolls or Mercenaries, Spies and Private Eyes to Mothership

Last one for now and a bit later, next week will be a bit later as well. This is a horrible mess of trying to prize three different systems together.


You can probally get by with:
MR/20 = HD, apply conversion
(Damage Dice+Adds/3.5)/3 = Spread across several attacks

If no MR
Personal Adds/3.5x5 = COM
CON/6 = Wounds, CON = Health, apply conversion

14 - Armor Hits = AC, 9 - AC =  AR
No Armor Hits, use HD as AR


The worked process

Treat Level as HD when converting or CON as HP if not available and so using the same conversion rules when translating to Health. If no HD and so no Wounds, assign 1 Wound per 6 CON, rounding up.

OSE/OSRIC damage scale is roughly one-third that of Tunnels & Trolls. Bonuses or Penalties also are affected by a factor of 3. The same should be applied to the Attack Adds for their skills and weapons. Divide the ‘Adds’ by 3.5 to determine additional dice; only whole numbers count.  Any remainders of this step should be divided by 6, and if 0.5 or greater round them up as a single +1 to be dealt with after division by three, which is ignored in Mothership conversion but here for completion.

What this means is that a target needs to have a +3 to hit bonus to get a +1 x 5% Mothership Combat bonus and a 6+2 Grand Shamsheer (No-Datchi) sword in T&T 5e will be a 2d6 sword, which becomes 2d10 in Mothership. Ignore STR and DEX requirements.


MONSTER RATING

Divide MR by 20 to determine the creature's HD, THACO and Instinct. Remainders are divided by 10 to get the HD bonus. If this reduces the new Health total to less than 10, round up to the nearest 5.

Then apply the OSE to Mothership Wound and Health Converter.


There was this cool OD&D to T&T sheet which listed out all the equivelent T&T stats and Armour, but I lost it somewhere, or never saved it.

So I'm using these instead

https://rolltodoubt.wordpress.com/2024/07/26/hit-dice-to-tunnels-trolls-conversion/

https://worldoftheburn.blogspot.com/2013/05/dungeons-and-dragons-from-tunnels-and.html


Special Attacks / Abilities.  Divide maximum damage by 3 as normal, then apply the Mothership Conversion.

Subtract Armour Hits (before doubling) from 14 to determine the Descending AC.  Values higher than 10 count as 10 AC.  Or with Ascending AC, add the T&T value to 10.  Apply Mothership Conversion.

For introducing AR for T&T monsters which lack it, I'd say the new HD = AR.

Going from a T&T source that mentions Trigger Numbers (Gaze on three 6s, for example), means that there is a percentage chance that each Round of combat, someone will be subject to the attack. Make it 4 - number of dice as a percentage, so if the TN requires 3 6s to be rolled, the attack goes off if a 10 or less is rolled for the monster’s Combat check.

If a Saving Roll is required for any attack, follow the rules for DC conversion. SR inflicted by the monster requires a Save from the player with [-] if the monsters original Wounds are higher than the players, though environmental circumstances can change this.

Magic works the same as any other converted magic, it’s unlikely the players will get to use it.


Balrog Maximus Meany from the T&T 5E example section had a MR of 250 and does 26d+125 damage each combat round (if not magic)

This becomes MR/20 = HD 12.5

Therefore Wounds start at 12, HP is 12 x 4.5 = 54 (let's arbitrarily bump this to 55 for the 0.5 more), THACO 10 and Instinct is 85%

Combat = 21 -THACO + Any listed modifiers x5 +15, or Ascending Attack Bonus +2 + Any listed modifiers x 5 +15.

Instinct = HD x 10, becoming HD x 5 after 5 HD, as a percentage

COM is (21 - 10) x 5 +15 = 11 x 5 + 15 = 70%

Applying the rule - If 4 Wounds or higher, deduct 2 Wound and 10 Health for every 3 total Wounds. If this reduces the new Health total to 10 or less, add 5 to the Health. and round up to the nearest 5.

Wounds/HP become 12 - (2 x 4) and 55 - (10 x 4) = 4/15

For damage, 26d+125 is 26+(125/3.5) = (26+35)/3 = 20d6

d8, d10, 2d6 = 2d10

Doubling as you go

Once you get to 4d10, you have the option of changing it to 1 Wound if caused by massive damage.

So 2d10 x 10 or 4d10 x 5 or 5 Wounds. Tricky because T&T does all the damage as a single roll off.

I'd be tempted to say 5 attacks at 1 Wound each.

No mention of armour, which is a little annoying, but still

Maximus Meany

W2(30)

COM 70% Flaming Great Weapon 1W , Alternate Fire & Explosives and Gore & Massive

5 Attacks per round

INS 85%

AR 12

Can move faster than a human and can fly

Weapon loses fire effects when exposed to water.


Extraterrestrial Criminal from T&T Solo 9 - The City of Terrors, passage 95

ST 35, IQ 18, LK 20, CON 5, DEX 18, and CHR 15

Sonic sword cuts though any armour in 2 rounds

He has no armour, and his combat adds are 37. The sonic sword gets 3 dice plus 5 adds.

No level listed and no MR, so CON = HP = 5, at the rate of 1 Wound per 6 CON, rounding up, this foe has just 5 Health as listing a Wound of 1 is pointless.

The weapon is 3+5 or 3/3+5/3.5 = 1+1.4 = 2, that becomes 2d6 = 2d10 in Mothership

The low HD means the skill is too low, so 37/3.5 = 10 x 5  = 50% COM

Extraterrestrial Criminal

(5)

COM 50%, Sonic Sword 2d10

Sonic Sword cuts through any armour in 2 rounds

INS 50% to save time, as the foe never did anything but attack


Jub-Jub Bird (from 7.5E)

MR: 25 – 150 (roll 1D6 x 25) per head

Special Abilities: Little Feets (2 WIZ), Befuddle (5 WIZ), Wink-Wing (7 WIZ); all as cast by a 4th Level Specialist Wizard

WIZ 3–15 (10% MR rule) per head,

SPD 3D6+18

Armor Hits: 1-6 points (1 per 25 MR) per head


This is trickier, MR seems to be per head and it has spells at a level seperate to MR. The image has two-heads and so does it's listed insperation in the description.

I rolled a 1 and a 6, so MR 25 and 75 for each head with WIZ 2 and 7 and Armor 1 and 6 respectively
SPD is 28
Let's combine these: MR 100, WIZ 9 and Armor 7

100/20 = 5 HD and HP 17. Which becomes W3(7), which rounds to W3(10).
I think I'll take an executive decision to make that W2(15) for one per head.

COM 21-15 = 6 x 5 = 30%, 11+50 is 11+50/3.5 = 25/3 = 8d6, which is 4 x 2d10 or 2 x 1 Wound
INS 5 x 10 = 50%
Funnily enough, casting spells at the 4th Level is not high enough to get a seperate higher magic skill. But does already have the discount from the level accounted for. Accounting for the HD to wound conversion, if a target has les than 3 wounds, they save with [-].
SPD means they always act first, considering a normal human has 3d6 in T&T 7.5E

Armor Hits is 7, 14-7 = 7, 9-7 = 2

Jub-Jub Bird (medium threat)

W2(15)

COM 30% Beak 1W (Bleeding)
2 Attacks a round

AR 2

INS 50%
Can cast the following spells: Little Feets (2 WIZ), Befuddle (5 WIZ), Wink-Wing (7 WIZ) out of a pool of 9 WIZ

Faster than a person

Tuesday, December 30, 2025

Converting Dungeon Crawl Classic to Mothership

An oddly specific conversion, but one that didn't quite fit with the rest of the OGL material.

And it's a good thing to mark the end of the year with, having finished all the D20-based OSR/OGL to Mothship systems I own.
I'll start the new year off with Tunnels and Trolls and then I'm done for the project.

HD = Wounds

HP = Health, if HP is under 10, add +1d5+6 (Allowing 1 HD monsters to have between 11-15 Health), add the OSE HD modifier to Health if average not listed. Add or deduct from Health based on the original size. D6: -1, D8: +0, D10: +1, D12: +2. Anything with a HD of d5 or lower dos not adjust Health if it is under 10

If 4 Wounds or higher, deduct 2 Wound and 10 Health for every 3 total Wounds.

If this reduces the new Health total to less than 10, add 10 to the Health. and round up to the nearest 10.

Add the extra Wound

Difficulty Classes in DCC are 2 to 5 points lower than in other OGL games. So an extra 2 points are needed to be added to Combat and Instinct calculations.

Combat = Ascending Attack Bonus +2 + 2 + Any listed modifiers x 5 +15.

Instinct = HD + 2 x 10, becoming HD x 5 after 5 HD, as a percentage

(9-AC/AC-10 for Ascending) round down = AP

Each damage dice converts to a number of dice

1, 2, d3 = 2 flat damage

d4, d5 = d5

d6, d7 = d10

d8, d10, d12 = 2d10

d14, d16 = 3d10

d20, d24 = 4d10

d30 = 1 Wound

If converting multiple dice rises above 4d10, it becomes 1 Wound.

Bonuses to damage are ignored unless they are +2, then up the dice by one per +2 on the chart prior to converting.

If a + Weapons is required to hit the monster, deduct 1d0 from the damage of the Mothership weapon per + required.

Actions remain the same, use judgement for distance of attacks.

In the unlikely event you need to calculate speed, original speed for a walk, x 3 for a run, converting to meters if required.

+/-4 or higher situational modifiers convert to [+] and [-].

Magic Resistance applies to magic, paranormal or psychic powers as they occur.

DC inflicted by the monster requires a Save from the player with [-] if the monsters original Wounds are higher than the players, though environmental circumstances can change this.


From DCC 66.5 Doom of the Savage Kings

The Hound of Hirot: Init +2; Atk bite +3 melee (1d8) or claw +3 melee (1d4); AC 15; hp 4d12; hp 20; MV 30’ or fly 30’; Act 3d20; SP demon traits, gaseous form, immune to charm effects; SV Fort +4, Ref +4, Will +0; AL C.

W 4

H 20 + 2 (Size d12)

This becomes W2 HP 12

Add the extra wound for W3 HP 12

COM 3+ 2 + 2 x 5 + 15 = 50% Bite 1d8 = 2d10 or Claw 1d4 = 1d5

Act 3d20 = Three actions a round

AC 15 – 10 = AP 5

INS 4 +2 x 10 = 60%

Can move or fly as fast as a person

Demon traits, gaseous form, immune to charm effects need to be looked up

Demon traits just seem to imply the rest of the special abilities from the description, though no doubt renders it weakened to those who consider Chaos unholy in the DCC system.
Gaseous form - "If the hound is reduced to 0 hp, it dissolves into oily black mists and returns to its lair, emerging the following night at full hp."

Immune to charm effects is self-explanatory

 

The result is:


The Hound of Hirot
W3 HP 12

COM 50% Bite 2d10 Gore & Massive or Claw 1d5 Bleeding

INS 60%

Three actions a round

AP 5

Can move or fly as fast as a person

Demonic: A successful THEOLOGY Skill Roll deduces the Hound’s Traits, A successful MYSTICISM Skill Roll deduces the Hounds Stat and a Successful XENOESOTERICISM roll gives [+] to Damage against the Hound.

If the Hound is Reduced to 0 Wounds, it dissolves into oily black mists and returns to its lair, emerging the following night with full Wounds

The Hound cannot be charmed or mentally dominated by any mortal science or magic.

 

 From DCC 67 Sailors on the Starless Sea

 Beastmen: Init +1; Atk spear +0 melee (1d6); AC 12; HD 1d8; hp 3 each; MV 30’; Act 1d20; SV Fort +1, Ref +1, Will -1; AL C.

W 1 + 1 for the extra

HP 3 + 1d5 + 6 (let’s say the average with rounding 9 for a neater 12)

 

Beastmen

W 2 H 12

COM 25% Spear 1d10

INS 30%

AP 2

Saturday, December 27, 2025

4E of the World’s Greatest Roleplaying Game To Mothership Conversion

People frequently think of this is difficult but it’s not.

Take the HP and the Level, take the difference between 24 and the Level and divide the HP by the new Level and then by the monster type to get the HD, rounding up.
Minions are /4, Standards are /2, Elite are, as is and Solo are x2. Health is Bloodied/2. Which then has the Mothership Wound conversion applied to it. If the Monster is from MM1 and MM2, multiple the HP by 0.8 prior to dividing by Level. Bloodied Effects occur when at half Wounds or Less.

Combat is calculated slightly differently as we rely on Level and not HD, (Attack Bonus - Level) x 5 + 30

Divide Damage/2 and convert into d5, d10 and Wounds as according to convertor. Monsters from the MM1 need a damage bonus, so multiply damage before Mothership conversion by 1.5.

Divide AC by 2, rounding down to get the Ascending AC. Deduct 10 to get Mothership effective AP.

If speed is needed, multiple Squares x5 and that’s how many feet they walk, x3 that number for running and divide for metres as needed.

Any attacks that recharge randomly can only be used once per combat encounter. As are any which are explicitly once per encounter.

Traits and Triggering actions are always in effect, but assumed unless specified the monster can do one Standard/Encounter and one Minor action each turn. Skills/2 x10 as a percentage if Instinct isn’t higher.

+4 or higher situational modifiers convert to [+] and likewise do -4 or worse into [-].

Magic Resistance applies to magic, paranormal or psychic powers as they occur.

DC inflicted by the monster requires a Save from the player with [-] if the monsters original Wounds are higher than the players, though environmental circumstances can change this. Special attacks which target Ref need SPD or INT rolls to avoid effects, Will needs FEAR or SAN and For need BODY or STR.


Let's apply this to the Banderhobb Warder, one of the creepier 4E originals.

Things from the Shadowfell (equal parts alternative world, negative/shadow plane and purgatory) who steal people for their unseen master, either by swallow and regurgitating them or stuff them into a sack.

They teleport into shadows with the writing carved into the midsections, so clearly there is a guiding intelligence.



Banderhobb Warder
Large shadow magical beast
Level 16 Soldier XP 1400

HP 160; Bloodied 80Initiative +16
AC 32, Fortitude 30, Reflex 28, Will 26Perception+15
Speed 6, swim 6Darkvision

Standard Actions

(⚔) Longfinger Claw ✦ At-Will

Attack: Melee 2 (one creature); +21 vs. AC

Hit: 3d8 + 11 damage, and the target is marked until the end of the warder's next turn.

(➶) Lightning Tongue (lightning) ✦ At-Will

Attack: Ranged 5 (one creature); +19 vs. Reflex

Hit: 2d8 + 7 lightning damage, and the target falls prone.

⚔ Longfinger Clutch ✦ At-Will

Attack: Melee 2 (one or two creatures); +21 vs. AC

Hit: 2d8 + 7 damage, and the target is marked until the end of the warder's next turn.

Triggered Actions

⚔ Swallow ✦ At-Will

Trigger: A Large or smaller enemy marked by the warder makes an attack that does not include the warder as a target.

Effect (Immediate Reaction): The warder shifts 3 squares to a space adjacent to the triggering enemy and makes the following attack.

Attack: Melee 1 (the triggering enemy); +19 vs. Fortitude

Hit: The target is removed from play. Until the effect ends, the target takes ongoing 10 damage. The target can take actions as normal and can make melee and close attacks against the warder. The effect ends when the warder drops to 0 hit points or when the warder ends the effect as a free action. When the effect ends, the target appears in an unoccupied space of its choice adjacent to the warder.

No Escape (teleportation) ✦ Encounter

Trigger: An enemy marked by the warder ends its move.

Effect (Immediate Reaction): The warder teleports 10 squares to a space adjacent to the triggering enemy.

Skills Athletics +21
Str 26 (+16)                Dex 23 (+14)                Wis 24 (+15)
Con 24 (+15)                Int 22 (+14)                Cha 11 (+8)

Alignment evil       Languages understands Goblin

Published in Monster Manual 3, page(s) 18, Dungeon Magazine 180.

Level is 16 (it is match for a level 16 player and 5 of them is a statistically bland encounter for a party of 5). HP is 160.

24 and 16 has a difference of 8, 160/8 = 20, Standard monster means 20/2 = 10 HD, HP would be 40

Applying the conversion is:

It's got 10 Wounds to start with. Three goes into 10, 3 times, so the new Wounds are 10 - (2x3) = 4, HP 10

Let's flip that to be W2 HP 20

Combat is (21 or 19 - 16) x 5 + 30 = 5/3 x 5 + 30 = 55% or 45%

Instinct would be 75%, but the amazingly high Athletics is 21/2 x 10 = 100, Always capable of making the move

All attacks are either ranged 2 or 5, so 10 to 25 feet. So, they can hit a Close range due to the horrible long arms.

Longfinger Claw: 3d8+11/2 is 1.5d8+5.5, let's round that down to 1d8+5

1d8 is 2d10. But +5 is two lots of +2, in turn increasing the value to 4d10 and eventually 6d10. Becoming 1 Wound and 2d10 damage.

Lightning Tongue is 2d8+7/2 is 1d8+3.5

2d10 upgraded to 4d10 or 1 Wound

Causes people to be knocked over unless they make a SPD Roll to avoid it

Longfinger Clutch is 2d8+7/2 is 1d8+3.5, which is 4d10 or 1 wound but also Marks target

This then plays into the Banderhobb's Swallow and No Escape actions

Swallow does 10 damage/2 is 5 damage

AC is 32/2 = 16-10 = 6 AP

6 squares is 30 feet per round walking and swimming, about human speed.


Banderhobb

W2(20)

INS 75%, Always passes situations that would require athletic ability

COM All attacks Close Range

Claws 55%, 1W (Gore & Massive), each attack, the Banderhobb either does an addition 2d10 damage or marks a sigil

Lighting Tongue 45%, 1W (Fire & Explosives), causes people to be knocked over unless they make a SPD Roll to avoid it

Once in an encounter, the Banderhobb can teleport through a shadow to Marked target, so long as it is in Close Range (15m to be precise)

Swallow 45%, 5 damage per round on the target's turn

Should the Marked target be within Close Range and ignore the Banderhobb, it moves faster than its bulk suggests, swallowing the target whole. Fitting up to its own body mass in a single gulp and regurgitating at will. Those swallowed can still fight if they can get purchase.

AP6

As fast a a person on land and in the water

Can see in the Dark


UCR Memo

BLUF

We should determine the source of these creatures and moving to aggressively acquire the operation through any means necessary.


Details

Banderhobb are large creatures of the Outer Dark. Abducting targets for whatever master that inscribed the sigils onto them from dimensional rifts made of shadows. Several have been identified by size and ability, though whether they are individuals or types is unknown.

This is both a dire risk to the stability of the Company's operations in the Rim but also an opportunity. These Banderhobbs can perform the same role as a Hatchetman, with greater precision and infiltration ability. Obtaining knowledge and control of these creature should be a top priority for the branch. Specialists and contractors with the right combination of experience and expendability should be hired for this purpose. Leverage can be acquired by producing evidence that Banderhobbs are responsible for missing persons of interest to employees.