i guess you’d also want some horror along with that so:
basically all “call of cthulhu” rpgs from “achtung, cthulhu!” to delta green has strange fish people mutants.
rippers, a savage worlds setting/game/supplement/whatever they call those now, allows for experimentation with monster parts, that can be easily reflavoured as mutations or lead straight up to mutation.
i guess you’d also want some horror along with that so:
basically all “call of cthulhu” rpgs from “achtung, cthulhu!” to delta green has strange fish people mutants.
rippers, a savage worlds setting/game/supplement/whatever they call those now, allows for experimentation with monster parts, that can be easily reflavoured as mutations or lead straight up to mutation.
Not necessarily, it was more about the mechanic itself. :)
But I agree, the systems you’ve provided are great examples.