Y.A.G.A.C is a free open-source platformer game
a 3D openGL b3d car / city town / flight / tank simulation game
Just a G. U. I. for Prboom / Prboom-plus
Access to Irrlicht Engine SDK from assembler, C, Python, Basic, Pascal
Free MMORPG Engine. Develop and host graphical browser-based games.
Game creation engine with built-in BASIC interpreter.