A development environment focused on modding
Linux wrapper tool for use with the Steam client for custom launch
Desktop/Android/HTML5/iOS Java game development framework
A cross-platform PSP emulator
One framework for creating powerful cross-platform games
Fast and lightweight JavaScript game engine built on WebGL and glTF
The source code to VVVVVV
Open source simulation game based on Transport Tycoon Deluxe
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Enables Roblox developers to use professional software tools
Open Source MMORPG Framework
PufferPanel is an open source game server management panel
Svelto ECS C# Entity Component System
An award-winning drawing program for children of all ages
An Open Source DOS emulator to run old DOS games
FlightGear Flight Simulator: free open-source multiplatform flight sim
RTS game with the theme of Strategy by Design
A strategy game with a high fantasy theme
Chess Database and Toolkit program
An Ubuntu remix for both new and experienced Linux sophisticates