so... you can make creatures with some pretty crazy adaptations but nothing too crazy, some can even b bio-mechanical like the raven. i need some more creatures for these area`s: -sunken docks(water/tidepool zone) -ash heap(ash/fire covered area) -frozen caves(frigid underground area) -the Tower(very high final area) so the story is... humans used to live on this planet where "Flood" is taken on and then for some reason climate change then the whole planet flooded only leaving ruins behind and stuff then the creature's started adapting, and that's why others look more different than present animals today, and that the creature's that take place in "Flood" are more evolved and adapted forms of: mice, avian's, fish, and frogs