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
Open game and rendering engine packed into a JavaScript framework
Open source HTML5 game framework that offers WebGL and Canvas
Real Time Strategy game engine supporting early Westwood classics
Open Source MMORPG Framework
Open source library for creative expression on the web, desktop, etc.
One framework for creating powerful cross-platform games
Fast and lightweight JavaScript game engine built on WebGL and glTF
Desktop/Android/HTML5/iOS Java game development framework
Open source library for N64 development
A game framework written with osu! in mind.
Self-hosted CMS platform based on the Laravel PHP Framework
ThinkPHP Framework
You can make it - Open Source MMORPG Platform
Unity3D Client And C# Server Framework
CTFs as you need them
Gideros Release version
Arianne is an engine to develop multiplayer online games like Stendhal
All-In-One program that combines multiple Fortnite Dev Account tools.
An isometric arcade-style game of skill, puzzles and exploration
Examples of procedural geometry for Unity3D C#
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented