Desktop/Android/HTML5/iOS Java game development framework
Open source library for creative expression on the web, desktop, etc.
lua dev plugin for unreal engine 4 or 5
A free 3D game engine to create games and realtimes scenes for Windows
An API for interacting with Starcraft: Brood War (1.16.1)
Lego Island 2 Game Editor
IRB is a game creation toolkit
2D ARPG Engine
Perl bindings to the Modern OpenGL API
Open-source, cross-platform, C++ game engine for creating 2D/3D games
3D .NET engine for Windows, Linux, Mac
Toolkit for the easy prototyping of hybrid games for Tabletop Devices
Multimedia asset management and manipulator for Étoilé
Cross-platform C framework very compact libraries and tools.
A generic 2D engine for any kind of game
a game library to develop audio games
3D Game engine
TurboSphere is an easy to learn and powerful JS based game engine.
3d lib
Scriptable frontend for media applications.
Pear3DEngine is a modern and modular 3D development framework
Open Source Virtual World and MMOG Development Platform