Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
Enables Roblox developers to use professional software tools
Real Time Strategy game engine supporting early Westwood classics
Fast and lightweight JavaScript game engine built on WebGL and glTF
Open Source MMORPG Framework
One framework for creating powerful cross-platform games
Desktop/Android/HTML5/iOS Java game development framework
Open source HTML5 game framework that offers WebGL and Canvas
Open source library for N64 development
A game framework written with osu! in mind.
ThinkPHP Framework
You can make it - Open Source MMORPG Platform
Open source library for creative expression on the web, desktop, etc.
CTFs as you need them
Self-hosted CMS platform based on the Laravel PHP Framework
Gideros Release version
Unity3D Client And C# Server Framework
All-In-One program that combines multiple Fortnite Dev Account tools.
Arianne is an engine to develop multiplayer online games like Stendhal
Game engine supporting many 3D/2D formats and graphic effects
utility collection for 2D game development in Java; sound-player
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Ze Text Adventure game Builder : Create as you play !
An isometric arcade-style game of skill, puzzles and exploration