A game engine powered by python and panda3d
3D game engine/framework in C, with Luajit and Python bindings now
utility collection for 2D game development in Java; sound-player
Zig game engine & graphics toolkit
Game engine supporting many 3D/2D formats and graphic effects
GemRB is a portable open-source implementation of the Infinity Engine
Full featured MUD server with all the trimmings.
The multiplayer game engine
Portable game engine with main focus on point-and-click adventures
Web powered cross-platform 3D, WebXR game engine
A 3D game engine in java.
An advanced flexible game engine for Java.
An online multiplayer turn based strategy game and board game engine.
Java decentralized cross-platform network multiplayer game engine
A 2D Adventure Game & Engine
A 3D, fully concurrent game engine
Free Android 2D OpenGL Game Engine
A multiplatform game engine for interactive fiction experiences