Zero-K
Open Source on Springrts engine. Zero-K is a traditional real time strategy game with a focus on player creativity through terrain manipulation, physics, and a large roster of unique units - all while being balanced to support competitive play.
Word Mastermind
Wordle clone. A Mastermind-like game, but instead of colors you need to guess words.
Veloren
Multiplayer RPG. Open-source game inspired by Cube World, Legend of Zelda, Dwarf Fortress and Minecraft.
The Battle for Wesnoth
The Battle for Wesnoth is an Open Source, turn-based tactical strategy game with a high fantasy theme, featuring both singleplayer and online/hotseat multiplayer combat.
Teeworlds
Open source 2D retro multiplayer shooter.
Suroi
An open-source 2D battle royale game inspired by surviv.io.
Romm
RomM (Rom Manager) is a web based retro roms manager integrated with IGDB.
Red Eclipse 2
A FOSS Arena First-Person Shooter Similar to Unreal Tournament.
Quizmaster
A web-app for conducting a quiz, including a page for players to enter their answers.
Posio
Geography multiplayer game.
piqueserver
Server for openspades, the first-person shooter in a destructible voxel world.
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.
Mindustry
Factorio-like tower defense game. Build production chains to gather more resources, and build complex facilities.
Minetest
An open source voxel game engine. Play one of our many games, mod a game to your liking, make your own game, or play on a multiplayer server.
Lila
The forever free, adless and open source chess server powering lichess.org, with official iOS and Android client apps.
Digibuzzer
Create a virtual game room around a connected buzzer (documentation in French).
0 A.D.
A free, open-source game of ancient warfare.
A Dark Room
Minimalist text adventure game for your browser.