Carcosa -- Attributes & mutations

Continuing my planned house rules for creating characters in Carcosa, up next is attributes and mutations.

Attributes will simply be rolled 3d6 in order. Quick, traditional and fraught.

However, as a slight twist, every attribute rolled which is below average (i.e. 8 or lower) grants the character a beneficial mutation from the lists in Mutants & Mazes. Scores of 7 or 8 grant a class 1 mutation, 5s or 6s grant a class 2 mutation, and 3s or 4s grant a class 3 mutation. Where applicable (class 2 & 3) there's a 50% chance of the mutation being physical, and a 50% chance of it being mental.

For ease of reference I've compiled mutation tables which include the experience level at which each mutation becomes active. For mutations which first activate at 2nd level or higher, I think I'll create a list of pre-active variations, so that the mutation has some use before its main effect "goes live". For example energy retaining cell structure, which is fully active from 3rd level, would perhaps allow a 1st or 2nd level character to discharge a minor shock (1d6 damage) once per day.

Class 1 Physical Mutations

d10	Mutation	Level
1	Aberrant Form	1
2	Dwarfism	1
3	Echolocation	1
4	Epidermal Photosynthesis	1
5	Gigantism	1
6	Night Vision	1
7	Prehensile Tail	1
8	Spiny Growth	1
9	Thermal Vision	1
10	Ultraviolet Vision	1

Class 2 Physical Mutations

d00	Mutation	Level
01-11	Energy Retaining Cell Structure	3
12-22	Fragrance Development	1
23-33	Increased Balance	1
34-44	Increased Physical Attribute	1
45-55	Increased Sense	1
56-66	Natural Armor	1
67-77	Optic Emissions (bright eyes)	5
78-88	Shriek	1
89-95	Toxic Weapon	5
96-00	Unique Sense	1

Class 3 Physical Mutations

d12	Mutation	Level
1	Chameleon Epidermis	1
2	Complete Wing Development	1
3	Density Alteration (Self)	7
4	Dermal Poison Slime	1
5	Dual Headed	1
6	Energy Ray	4
7	Metamorph	7
8	Optic Emissions (gamma eyes)	5
9	Parasitic Control	7
10	Quickness	5
11	Reflective Epidermis	3
12	Regenerative Capability	1

Class 2 Mental Mutations

d12	Mutation	Level
1	Ability Boost	1
2	Acute Hyper Healing	3
3	Combat Empathy	1
4	Empathy	1
5	Increased Willpower	1
6	Intellectual Affinity	1
7	Know Direction	1
8	Mental Barrier	1
9	Mental Phantasm	5
10	Metaconcert	1
11	Mind Thrust	1
12	Neural Telepathy	3

Class 3 Mental Mutations

d00	Mutation	Level
01-04	Accumulated Resistance	1
05-08	Ancestral Form	11
09-13	Body Adjustment	5
14-18	Control Light Waves	5
19-22	Control Weather	10
23-26	Damage Turning	5
27-32	Density Alteration (Others)	7
33-36	Disintegration	11
37-41	Dual Cerebellum	1
42-46	Flight, Psionic	5
47-50	Force Screen	7
51-54	Force Screen, Greater	9
55-58	Killing Sphere	10
59-64	Neural Telekinesis	9
65-69	Plane Shift	9
70-74	Possession	9
75-78	Precognition	3
79-82	Mind Reflection	7
83-86	Quick Mind	7
87-92	Teleport	9
93-96	Temperature Control	5
97-00	Vampiric Field	12