Desktop/Android/HTML5/iOS Java game development framework
Godot is a powerful cross-platform game engine
Enables Roblox developers to use professional software tools
A simple and easy-to-use library to enjoy videogames programming
One framework for creating powerful cross-platform games
Real Time Strategy game engine supporting early Westwood classics
Open Source MMORPG Framework
Fast and lightweight JavaScript game engine built on WebGL and glTF
Open source HTML5 game framework that offers WebGL and Canvas
Gideros Release version
ThinkPHP Framework
CTFs as you need them
lua dev plugin for unreal engine 4 or 5
A game framework written with osu! in mind.
Open source library for creative expression on the web, desktop, etc.
You can make it - Open Source MMORPG Platform
Self-hosted CMS platform based on the Laravel PHP Framework
Arianne is an engine to develop multiplayer online games like Stendhal
An isometric arcade-style game of skill, puzzles and exploration
Old-school 2D game engine
JavaScript framework to build game engines, games, emulators and apps
Game engine supporting many 3D/2D formats and graphic effects
INSTEAD - Simple Text Adventure Interpreter.
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
PyCAPGE - Python Classic Adventure Point and Click Game Engine