Orx Portable Game Engine

GitHub - orangeduck/Corange: Pure C Game Engine

Pure c game engine contribute to orangeduck corange development by creating an account on git hub

LadyHavoc’s DarkPlaces Quake Modification

ioquake3

Play quake 3 and make new games

GitHub - id-Software/Quake: Quake GPL Source Release

Quake gpl source release contribute to id software quake development by creating an account on git hub

GitHub - id-Software/Quake-2: Quake 2 GPL Source Release

Quake 2 gpl source release contribute to id software quake 2 development by creating an account on git hub

Spearmint - Video Game Engine

Spearmint a video game engine based on quake 3