A 3D, fully concurrent game engine
C++ Text Adventure Engine
A Simple Game Engine
A retro style video game engine for RPGs and adventure games.
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
Open source, moddable game engine for the "Polygon Love 2" game
cross-platform 2d game engine
WIP Game engine
RTS engine
Point-and-click 2D game engine
Cross Engine is game engine for Windows, Mac, Linux and Android
SDL game engine made for Ludum Dare 24
Cross-platform 2D game engine