FPS Unlocker for Roblox
Set of Python modules designed for writing video games
Desktop/Android/HTML5/iOS Java game development framework
Stream switch games to your PC via USB or network
Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
Open source cross-platform multi-purpose game toolkit
GUI for downloading/managing homebrew apps for video game consoles
Skript is a Bukkit plugin which allows server admins
A cross-platform PSP emulator
Cross-platform rhythm game for the keyboard
One framework for creating powerful cross-platform games
Multi Theft Auto is a game engine
A Native GOG and Epic Games Launcher for Linux, Windows and Mac
Free and open source real-time strategy game
Real Time Strategy game engine supporting early Westwood classics
Tactical 2D shooter in fishy pixels style. Made with Rust-lang
Open source clone of the Age of Empires II engine
Cross-Platform C++ 2D/3D game engine
RetroArch is a frontend for emulators, game engines and media players.
Lutris desktop client in Python
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
LayaAir is an open-source 2D/3D engine
Powerful, mature open-source cross-platform game engine for Python
The game engine for everyone