Game engine supporting many 3D/2D formats and graphic effects
GemRB is a portable open-source implementation of the Infinity Engine
Orx: Data-Driven Game Engine
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Character animation system for games and simulations.
Portable game engine with main focus on point-and-click adventures
Build Cross-platform Applications
3D .NET engine for Windows, Linux, Mac
plugin-based RPG manager in C++ and Qt5
Cross platform administration tool for Source Engine dedicated servers
Free Android 2D OpenGL Game Engine
C-Lesh is a game programming language for 2D games.
An Action Adventure Space Physics Game