What is "c-evo"

C-evo is a free turn-based strategy computer game whose source code – written in Delphi – has been put in the public domain by Steffen Gerlach, its programmer and designer. Other people have contributed separately downloadable alternative artificial intelligences for C-evo. Likewise, some of the graphics in the game are of external origin, but all are freeware.

C-evo is based on Civilization II, but with the aim of correcting the latter's alleged design mistakes by implementing six design principles which correct the game itself and strengthen its weak artificial intelligence.