0 A.D. source
Cross-platform real-time strategy game of ancient warfare.
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Self-hosted Games software (2026)
Multiplayer game servers and [browser games](https://en.wikipedia.org/wiki/Browser_game).
Related: Games - Administrative Utilities & Control Panels
19 open-source apps · all free & self-hostable
A Dark Room
Minimalist text adventure game for your browser.
DDraceNetwork source
Cooperative platformer version of DDRace, a Teeworlds modification featuring unique cooperative gameplay.
Digibuzzer source
Create a virtual game room around a connected buzzer (documentation in French).
Hypersomnia
Competitive top-down shooter blending Counter-Strike with Hotline Miami. Runs on Linux, Windows, MacOS and the Web.
Lila source
Ad-less chess server powering lichess.org, with official iOS and Android client apps.
Luanti source
Voxel game engine (formerly Minetest). Play one of our many games, mod a game to your liking, make your own game, or play on a multiplayer server.
Mindustry source
Factorio-like tower defense game. Build production chains to gather more resources, and build complex facilities.
MTA:SA source
Add network play functionality to Rockstar North's Grand Theft Auto game series, in which this functionality is not originally found.
OpenTTD source
Transport tycoon simulation game.
piqueserver
Server for openspades, the first-person shooter in a destructible voxel world.
Posio
Geography multiplayer game.
Razzia
Quiz game platform, designed for smaller self-hosted events (alternative to Kahoot!).
Red Eclipse 2 source
Arena first-person shooter similar to Unreal Tournament.
Scribble.rs
A web-based pictionary game.
Suroi source
An open-source 2D battle royale game inspired by surviv.io.
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.
Veloren source
Multiplayer RPG. Open-source game inspired by Cube World, Legend of Zelda, Dwarf Fortress and Minecraft.
Zero-K source
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.