Godot is a powerful cross-platform game engine
A game framework written with osu! in mind.
A simple and easy-to-use library to enjoy videogames programming
Enables Roblox developers to use professional software tools
Desktop/Android/HTML5/iOS Java game development framework
Open game and rendering engine packed into a JavaScript framework
Real Time Strategy game engine supporting early Westwood classics
Unity3D Client And C# Server Framework
Fast and lightweight JavaScript game engine built on WebGL and glTF
One framework for creating powerful cross-platform games
Self-hosted CMS platform based on the Laravel PHP Framework
Open source HTML5 game framework that offers WebGL and Canvas
ThinkPHP Framework
lua dev plugin for unreal engine 4 or 5
You can make it - Open Source MMORPG Platform
Open source library for N64 development
Open source library for creative expression on the web, desktop, etc.
CTFs as you need them
Gideros Release version
Open Source MMORPG Framework
TX Library is a tiny graphics library for Win32 written in C++.
Arianne is an engine to develop multiplayer online games like Stendhal
Game engine supporting many 3D/2D formats and graphic effects
All-In-One program that combines multiple Fortnite Dev Account tools.
utility collection for 2D game development in Java; sound-player