Ice Age For Treecat Adventures

[Pragmatic]

Originally Posted by dcarson

Bio-Tech or Uplift might be useful also, they both have good ideas on making aliens and alien animals. Bio-Tech has both 3rd and 4th edition versions.

I'm pretty sure that GURPS Space (for GURPS 4e) has a whole section of creating aliens and otherworld animals. Kind of like a revision of GURPS Uplift's rules for generating ur-species.