Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
Open source HTML5 game framework that offers WebGL and Canvas
Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
Real Time Strategy game engine supporting early Westwood classics
Open source library for creative expression on the web, desktop, etc.
ThinkPHP Framework
INSTEAD - Simple Text Adventure Interpreter.
Orx: Portable Game Engine
JavaScript framework to build game engines, games, emulators and apps
Examples of procedural geometry for Unity3D C#
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Cinema Enters Game Console
Sdk library for creating 2048 game in c#.
2D Game Engine
A cross platform Lua based game engine
Cross-platform 2D and 3D game engine
Multidocument automation by templates - for sphinx, mkdocs, epydoc ...
Reactive extensions for Unity
Build Cross-platform Applications
Asphyre is a cross-platform framework for Delphi and FreePascal.
Event driven concurrent framework for Python
Open-source, cross-platform, C++ game engine for creating 2D/3D games