Random Mutation Tables

[AlexAB]

Hello again, everyone, and happy new year!

As I mentioned last time, I am trying to adapt Warhammer 40k to GURPS for a campaign I am planning. One thing I would like to have, though, is a really comprehensive random mutation table. So, if anyone has good online resources about this kind of thing, this stuff is more than welcome in this thread.

However, one particular problem I wanted to deal with is more ridiculous mutations. I want, hopefully, to have a system where the table can easily suggest this and this kind of thing.

I have some ideas more or less figured out in my head, but it would be nice if the system could suggest something like "The mutant grows 3 elephant trunks out of his forehead". Where the bolded parts are stuff that was rolled on the table.

But it is kinda hard to find/make a body location table with this kind of detail. Worse yet, given the bizarre kinds of mutations that might show up, any table that detailed might be obsolete right out of the bat. Have any of you dealt with a similar problem? Has anyone seen any kind of random table that accounted for these 2 issues?

Thanks in advance, guys!

[Nereidalbel]

Looks a bit complicated for a standard d6 table; you may need make a table of mutations and then roll for quantity on anything that should have one.

[AlexAB]

Sure, sure, I didn't mean that I wanted it all to fit in a single table. In fact, the second part of my post concerns mostly how to make a sub-table pertaining body parts. Sorry for the confusion.

[Nereidalbel]

Using the hit location table for body parts would probably work.

[AlexAB]

Sure, but I kinda hoped for something a little more detailed.

[Nereidalbel]

If you don't mind using a d10 for a table, check this out.

[AlexAB]

Thanks! I don't mind the d10 at all (never liked using 3d6s for tables, actually) and this is exactly the kind of stuff I am looking for.

[Angle]

Another method is tp make your tables be d, d: so that 1, 2 is different from 2, 1.

[Figleaf23]

In my Gamma World emulation campaign, I did the following:

Players were invited to build up to 100 points in mutant Powers, with the caveat that each 25 points worth incurred a roll on the mutation tables.

In the end, I decided I would do the rolling because we were doing character creation remotely. These tables are not as specific as you're asking for, and leave room for interpretation of details. I decided that the work required to randomize a deeper level of detail was not worth it.

Here are the tables:

Hazard Table (Start here)

(GM Roll 1d per 25 points in Powers
Treat 2nd and further 5 rolls as 3;
Treat 2nd and further 6 rolls as 4.
Consult the following tables for results.)

1 No Effect
2 Limitation on a Power
3 Unnatural/Supernatural Feature
4 Unnatural Feature plus Hideous Appearance
5 Mental Disad
6 Physical Disad


Power Limitations

(Roll d10. Apply result to one applicable
mutant ability of the players' choice.
If no ability is applicable, GM will roll again.)

1 Unreliable (11 or less)
2 Recharge (Choose 5 minutes[-25%], or more)
3 Emergencies Only
4 Usually Off/On
5 Maximum Duration (Choose 1 hour or less)
6 Minimum Duration (GM-determined)
7 Uncontrollable
8 Limited Use (Choose)
9 Costs Fatigue (Choose Lvl) or Usually Off/On
10 All-out



Unnatural Features

(Roll d12; if the Hazard Table result was a 4, add 6)
Player has the option of choosing a higher numbered item, except 18.
Apply any resulting Disad rebate or Advantage cost arises.)

1 Unnatural Skin Colour
2 Taxonomy Add-on (e.g. Antennae, tail)
3 Fur
4 Unusual skin texture (partial)
5 Unusual skin texture (Full)
6 Extra Digits
7 Scales or Chitin (Partial)
8 Scales or Chitin (Full)
9 Replacement Taxonomy (e.g. head of a dog, goat legs)
10 Spines (Partial)
11 Spines (Full)
12 Extra Eye(s)
13 Extra Nose(s)
14 Extra Mouth(s)
15 Extra Limb or Member
16 Extra Head
17 Odd-formed/placed members/limbs (e.g. oversize, undersize, backward, wrong place …)
18 Choose 2 of items 1-6



Mutant Disads ("Mental")
(GM will roll D35
Contextually inappropriate results
(in GMs judgment) will be re-rolled.)

1 Berserk
2 Cannot Learn
3 Chronic Depression
4 Gregarius
5 Clueless
6 Confused
7 Combat Paralysis
8 Decreased: ???
9 Delusions
10 Dyslexia
11 Fearfulness (Min Lvl 3)
12 Easy to Read
13 Gullible
14 Hidebound
15 Impulsive
16 Indecisive
17 Innumerate
18 Insomniac
19 Killjoy
20 Low Empathy
21 Low Self-Image
22 Lunacy
23 Manic-Depressive
24 Megalomania
25 No sense of humour
26 Non-Iconographic
27 On the edge
28 Pacifism
29 Paranoia
30 Sadism
31 Selfish
32 Selfless
33 Slave mentality
34 Short Attention Span
35 Phobias


Mutant Disads (Physical)

(GM will roll D44
Contextually inappropriate results
(in GMs judgment) will be re-rolled.)

1 One Hand
2 One Eye
3 One Arm
4 One Leg
5 No fine manipulators
6 No Manipulators
7 Fragile
8 Bad Smell
9 Deafness
10 Cannot speak
11 Chronic pain
12 Cold blooded
13 Dependency: ???
14 Disturbing Voice
15 Dwarfism
16 Epilepsy
17 Fat/Very Fat
18 Frightens Animals/Dread
19 Gigantism
20 Hard of Hearing
21 Hemophilia
22 Hunchback
23 Increased Consumption
24 Invertebrate
25 Lame
26 Low Pain Threshold
27 Mute
28 Neuro Disorder
29 Night Blindness
30 Extra Sleep/Sleepy/Slow Riser
31 No Depth Perception
32 Nocturnal
33 Noisy
34 Numb
35 Restricted Diet
36 Revulsion
37 Semi-Upright
38 Skinny
39 Slow eater
40 Unfit/V. Unfit
41 Unhealing
42 Unusual Biochemistry
43 Vulnerability or Weakness
44 Wounded

[Jerander]

There was an expanded New Body Parts table for Gamma World in Dragon Magazine back in the 1985-90 range. I don't know if it can be located...