1.ioquake / ioq3The ioquake3 community effort to continue supporting/developing id's Quake III Arenafpsfps-gamefps-enginegamegame-developmentgame-engine+4 moreCGPL-2.02.9K total628 forks+149 starsfrom 2,714 · score 5.01
2.amzeratul / halleyA lightweight game engine written in modern C++CAPACHE-2.03.9K total180 forks+72 starsfrom 3,799 · score 4.29