Stream switch games to your PC via USB or network
UCI chess engine
Desktop/Android/HTML5/iOS Java game development framework
A simple and easy-to-use library to enjoy videogames programming
A cross-platform PSP emulator
One framework for creating powerful cross-platform games
Open source cross-platform multi-purpose game toolkit
An iOS & tvOS Frontend for Multiple Emulators
The game engine for everyone
The source code to VVVVVV
Home theater software and entertainment hub for digital media
Urho3D Game engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Netcode that provides networking capabilities to GameObject workflows
Godot Kotlin JVM Module
An open source reimplementation of the Among Us Server
New Godot bindings for Swift
A dead simple 2D game library for Go
The AWS GameKit Plugin for Unreal
An award-winning drawing program for children of all ages
3D Engine c++
Chess engines that support the UCI or XBoard protocol.
GemRB is a portable open-source implementation of the Infinity Engine
GEDKeeper - opensource and crossplatform genealogy management program