there are some graphically good libre games like: 0AD Stunt Rally openspades(well... it has good lighting effects) battle of wesnoth(had a good art-style ) M.A.R.S Xonotic
and i am sure theres other i have not though ofand ideally we will have loads of even more amazing games but we need people to make them first
(Currently making a Pacman clone in Lua+SDL2 so bare with me!)
