The Modrinth monorepo containing all code which powers Modrinth
PoC Minecraft client written in Javascript
Open source HTML5 game framework that offers WebGL and Canvas
Java/JavaFX/Kotlin Game Library (Engine)
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Free game engine for development of desktop, mobile, and web games
Self-hosted CMS platform based on the Laravel PHP Framework
Open source library for creative expression on the web, desktop, etc.
Free, cross-platform 2D game engine powered by Haxe and OpenFL
CTFs as you need them
Fast and lightweight JavaScript game engine built on WebGL and glTF
An updated version of the classic "Basic Computer Games" book
A 2D rigid body physics engine for the web
3D game engine/framework in C, with Luajit and Python bindings now
The game engine for everyone
A retro game engine for Python
JavaScript-based game engine designed to empower developers
Programming eXperience Toolkit
A free and open-source Touhou Project fangame
A completely free, open-source, 2D game engine
Build multiplayer web games played by millions
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
Cross-platform game engine in Rust
Full featured MUD server with all the trimmings.
Web-based karaoke software suite