Teeworlds
self-hosted, games; multiplayer game servers

Teeworlds is an open-source 2D retro multiplayer shooter game where players control cute, customizable characters called "teegs" and engage in fast-paced battles across various maps. Players can use a variety of weapons, such as guns, grenades, and laser rifles, to eliminate opponents and capture flags in team-based game modes like Capture the Flag or Deathmatch. The game features simple yet addictive gameplay, colorful graphics, and a vibrant community that creates custom maps, mods, and game modes. Teeworlds is available for free on multiple platforms, making it accessible to a wide audience of players.