2D game engine for traditional platform games
Cross Engine is game engine for Windows, Mac, Linux and Android
A game engine written in the D programming language
3D Game Engine
C++ Text Adventure Engine
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
WIP Game engine
Development of a RTS/FPS mixed game engine.
Distributed game engine
Visual Novel engine, editor and game development.
A 2D Java game engine
SDL game engine made for Ludum Dare 24