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