OPENLIERO

Fast-paced worm combat, reborn in Rust.
Local split-screen & online multiplayer via room codes.

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// DOWNLOAD

▶ PLAY NOW Browser · No install macOS Universal (ARM64 + x86_64) · .zip 🐧 Linux x86_64 · .tar.gz 🪟 Windows x86_64 · .zip

// HOW TO PLAY ONLINE

  1. Download and launch OpenLiero on both machines.
  2. The host selects HOST ONLINE from the main menu. A 6-letter room code appears — like XKRMQP.
  3. Share the code with your friend via chat, voice, or any way you like.
  4. Your friend selects JOIN ONLINE, types the code, and presses Enter.
  5. The relay server at liero.byruben.io pairs you automatically. The game starts immediately — no port forwarding required.

Both players must use the same game version. The relay handles NAT traversal; all game traffic goes directly between players (peer-to-peer UDP with rollback netcode).

// ABOUT

OpenLiero is a faithful open-source recreation of Liero (1998) by MetsänEläimet, rewritten from scratch in Rust. It supports up to 4 players local split-screen, 7 game modes including Last Man Standing, Team Deathmatch, King of the Hill, Bomb Tag, Zombie, Juggernaut, and Dirt War.

Online multiplayer uses UDP rollback netcode (GGPO-style) for low-latency play even across long distances.

Rust 🦀 wgpu renderer rollback netcode open-source 54 weapons