Templates

Python based Control Panel for your Minecraft Server

Zombie survival server, joined from the in-game browser through Steam networking

Dedicated server for the co-op mining sandbox, joined by Game ID

Survival co-op server, joined from Browse Games through the game's relay

Self-hosted Javascript emulation for various system.

Factorio headless multiplayer server

Freeciv 3.1 server for the turn-based civilization game, joined over IPv6

Physics sandbox server in Steam peer-to-peer mode, joined by its p2p address

Game server; sign in on first run

Server hosting tool for Minecraft and other multiplayers.

Luanti (formerly Minetest) voxel sandbox server, joined over IPv6

Multiplayer server for the factory and tower-defense game, joined over IPv6

Multiplayer game server

Mojang's dedicated server for Minecraft Bedrock Edition players

Gameboy in your browser

Free Quake III-style arena shooter server, joined over IPv6

Open-source transport tycoon server, joined by invite code

Multiplayer geography guessing game

ioquake3 server for your own copy of Quake III Arena, joined over IPv6

Quake III Arena's demo in the browser, played over HTTPS with nothing to install

Live quiz game for events; players join in the browser with a room code

Your beautiful, powerful, self-hosted rom manager.

Multiplayer draw-and-guess game, played in the browser

Online race server for the open-source kart racer, joined over IPv6

Valve's class-based shooter server, joined by Fake IP through Steam's relay

Multiplayer server for the turn-based fantasy strategy game, joined over IPv6

Zombie survival sandbox server, joined by Server Code

Vampire survival server, joined from the in-game server list through the game's relay

Dedicated Viking survival server

Server for the open-world voxel RPG, joined over IPv6