Voxel game-creation platform with easy modding and game creation
Orx: Data-Driven Game Engine
GemRB is a portable open-source implementation of the Infinity Engine
Real-time RPG for PC/tablet/phone; multiple quests and random dungeons
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Visual Novel engine, editor and game development.
cross-platform 2d game engine