Game Vault 999

AI powered website that provides hints and correct answers to solve New York Times' popular Connections game

A Dark Room - Minimalist text adventure game for your browser. MPL-2.0 Javascript

Lila - The forever free, adless and open source chess server powering lichess.org, with official iOS and Android client apps. AGPL-3.0 Scala

MTA:SA - Multi Theft Auto (MTA) is a software project that adds network play functionality to Rockstar North's Grand Theft Auto game series, in which this functionality is not originally found. GPL-3.0 C++

piqueserver - Server for openspades, the first-person shooter in a destructible voxel world. GPL-3.0 Python/C++

Posio - Geography multiplayer game. MIT Python

Quizmaster - A web-app for conducting a quiz, including a page for players to enter their answers. Apache-2.0 Scala

Red Eclipse 2 - A FOSS Arena First-Person Shooter Similar to Unreal Tournament. Zlib/MIT/CC-BY-SA-4.0 C/C++/deb