UZDoom is a feature centric port for all Doom engine games
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Azuriom is a complete open-source web solution for game servers
A game framework written with osu! in mind.
ThinkPHP Framework
Open source library for N64 development
JavaScript-based game engine designed to empower developers
Netcode that provides networking capabilities to GameObject workflows
Kitty-Tools is a Kahoot Cheating Client for all devices and interfaces
PoC Minecraft client written in Javascript
A refreshingly simple data-driven game engine built in Rust
A shield for the Arduino Mega that can back up video game cartridges
A completely free, open-source, 2D game engine
A charting and data visualization library for Unity
Decompilation of Paper Mario (Nintendo 64)
Just another ComputerCraft fork
Various things for PSX (PlayStation 1, PSone)
Turn Claude Code into a full game dev studio
An updated version of the classic "Basic Computer Games" book
lua dev plugin for unreal engine 4 or 5
The HTML5 Creation Engine
An open source implementation of the Ultima Online Classic Client
The flexible game engine
Rcon client for Minecraft