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