Orx: Portable Game Engine
A cross-platform port of Hexen II game.
PAK file editor for Quake engine games
Commander Keen Interpreter
PvP, MUD RPG.
Gaming library
Multi-platform game engine similar to old Megaman with a stage editor
This application is a 3 dimensions object maker and viewer program.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
A generic 2D engine for any kind of game
A Simple Game Engine
a flexible game engine
A very small multi-platform game engine for creating desktop games.
A 3D Linac Simulation.
Cross-platform reimplementation of AMOS BASIC (runtime)
a realtime graphics library
Reference implementation for the Doom game engine.