An open-source sandbox tower defense game
UCI chess engine
Godot is a powerful cross-platform game engine
A simple and easy-to-use library to enjoy videogames programming
Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
RetroArch is a frontend for emulators, game engines and media players.
Open source HTML5 game framework that offers WebGL and Canvas
Home theater software and entertainment hub for digital media
The source code to VVVVVV
A dead simple 2D game library for Go
The game engine for everyone
Mobile app for creating and maintaining long-term positive habits
Netcode that provides networking capabilities to GameObject workflows
An open source reimplementation of the Among Us Server
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
A habit tracker app which treats your goals like a Role Playing Game
Urho3D Game engine
The AWS GameKit Plugin for Unreal
Collection of utilities that interact with the Blooket API / website
3D Engine c++
Domination is a game that is a bit like the board game Risk
A MUD client for Android, iOS, Linux, Mac OS X and Windows
GemRB is a portable open-source implementation of the Infinity Engine
GLScene Engine for Delphi & C++Builder VCL Windows 32/64