Real Time Strategy game engine supporting early Westwood classics
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
Fast and lightweight JavaScript game engine built on WebGL and glTF
Desktop/Android/HTML5/iOS Java game development framework
Open source HTML5 game framework that offers WebGL and Canvas
Open Source MMORPG Framework
One framework for creating powerful cross-platform games
Open source library for N64 development
ThinkPHP Framework
Gideros Release version
A game framework written with osu! in mind.
Unity3D Client And C# Server Framework
Self-hosted CMS platform based on the Laravel PHP Framework
Open source library for creative expression on the web, desktop, etc.
CTFs as you need them
You can make it - Open Source MMORPG Platform
INSTEAD - Simple Text Adventure Interpreter.
JavaScript framework to build game engines, games, emulators and apps
All-In-One program that combines multiple Fortnite Dev Account tools.
Arianne is an engine to develop multiplayer online games like Stendhal
lua dev plugin for unreal engine 4 or 5
Game engine supporting many 3D/2D formats and graphic effects
Orx: Data-Driven Game Engine