The Tiny JavaScript Game Engine That Can!
A free 3D game engine to create games and realtimes scenes for Windows
Game engine for playing tomb raider 1 - 5 levels.
scriptable game engine with built-in support for 2D graphics and sound
Mahasona engine is an open source game engine.
A 2D Adventure Game & Engine
Small OpenGL based game enegine
TurboSphere is an easy to learn and powerful JS based game engine.
BxEngine For Marmalade And QT
Open source, moddable game engine for the "Polygon Love 2" game
WGFX 2D Game Engine
Point-and-click 2D game engine