ThinkPHP Framework
Desktop/Android/HTML5/iOS Java game development framework
CTFs as you need them
Open source library for creative expression on the web, desktop, etc.
Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
PyCAPGE - Python Classic Adventure Point and Click Game Engine
Game engine supporting many 3D/2D formats and graphic effects
Java Settlers
2D Game Engine
Modern 3D engine and IDE written using C# and C++.
A distributed graph deep learning framework.
CSG for jMonkey
Source code of the chapters of the book 3D Game Development with LWJGL
Portable game engine with main focus on point-and-click adventures
Build Cross-platform Applications
An advanced flexible game engine for Java.
Java decentralized cross-platform network multiplayer game engine
a game library to develop audio games
Java Gamepad API for multiple platforms
Multi-threaded 2D Renderer licensed under the Mozilla Public License
A multiplatform game engine for interactive fiction experiences
Pear3DEngine is a modern and modular 3D development framework
DiaT is a Textadventure