BxEngine For Marmalade And QT
2D - 3D game engine
A Simple Game Engine
A retro style video game engine for RPGs and adventure games.
a flexible game engine
2D Game Engine, based on OpenGL and focused on Isometric Games
3D game engine for C and C++
A very small multi-platform game engine for creating desktop games.
A truly extensible cross-platform game engine
Tactical, turn-based game engine, that uses OpenGL and WinAPI
Open source, moddable game engine for the "Polygon Love 2" game
Easy to use 3D game engine based on OGRE 3D
WGFX 2D Game Engine
cross-platform 2d game engine
WIP Game engine
"Abysmal Depths" is a simple C++-based text adventure game engine.
Point-and-click 2D game engine