Lizards take on the classic theme of heavily-armed humanoid rabbits fighting three-eyed green-skinned cheetahs! With laser pistols and longswords! (Hmmm, "Lasers and Longswords" would be a great name for a game... add it to the project list!) "Earth:Delta" is currently in the very earliest alpha stages of development, and a prototype document has been posted.

(Earth Delta used to be called "Earth AD", but apparently, there's another PA RPG with that title....)