Unity3D Client And C# Server Framework
A modular Common Lisp game engine
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Open source Old School RuneScape client
A game engine powered by python and panda3d
A .NET ascii/ansi console engine written in C# for MonoGame and XNA
A fresh & lightweight javascript game engine
A lightweight, modular and versatile mod loader for Minecraft Bedrock
Open source library for creative expression on the web, desktop, etc.
Powerful, mature open-source cross-platform game engine for Python
Self-hosted CMS platform based on the Laravel PHP Framework
Multi-platform 2D and 3D game engine
Turn Claude Code into a full game dev studio
Includes the boilerplate code for a GenLayer use case implementation
A simple Minecraft written in Rust with the Piston game engine
Botcraft is a cross-platform C++ library to create bots
Cross-platform 2D game engine focused on ultimate productivity
TGMC: TerraGov Marine Corps, a SS13 mod
All of Minecraft, EASILY get Minecraft resources
ThinkPHP Framework
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
A completely free, open-source, 2D game engine
Gradient Bang is an online multiplayer universe
Mastering Diverse Domains through World Models
CTFs as you need them