A game engine powered by python and panda3d
utility collection for 2D game development in Java; sound-player
Descent 3 by Outrage Entertainment
Zig game engine & graphics toolkit
2D JavaScript Physics Engine
High performance UI layout library in C
Game engine supporting many 3D/2D formats and graphic effects
Orx: Data-Driven Game Engine
Full featured MUD server with all the trimmings.
The multiplayer game engine
Spring is a free RTS engine developed for Windows, Linux and Mac OS X.
Web powered cross-platform 3D, WebXR game engine
scriptable game engine with built-in support for 2D graphics and sound
Multi-platform game engine similar to old Megaman with a stage editor
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
Built to be ease of use, with no programming knowledge, Multi-platform
A generic 2D engine for any kind of game
Free Android 2D OpenGL Game Engine