Godot is a powerful cross-platform game engine
The Ren'Py Visual Novel Engine
An updated version of the classic "Basic Computer Games" book
Set of Python modules designed for writing video games
The game engine for everyone
Noob-proof (N)3DS Custom Firmware
A simple and easy-to-use library to enjoy videogames programming
Fast, user-friendly cross-platform custom launcher for Minecraft
Create Minecraft bots with a powerful and high level JavaScript API
Code for Cicero, an AI agent that plays the game of Diplomacy
Python MUD/MUX/MUSH/MU* development system
Multi Theft Auto is a game engine
Just another ComputerCraft fork
Open source clone of the Age of Empires II engine
LayaAir is an open-source 2D/3D engine
Simple GTK# Paint Program
A refreshingly simple data-driven game engine built in Rust
Godot Kotlin JVM Module
lua dev plugin for unreal engine 4 or 5
A sharp, readable, vector-y version of Monocraft
Go bindings for raylib, a simple and easy-to-use library
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
3D and 2D game engine written in Rust
Kotlin extensions for the libGDX game framework
Stride (formerly Xenko), a free and open-source cross-platform C# game