Asobi

What Asobi is

Asobi is an open-source multiplayer game backend built on Erlang/OTP for solo developers and small teams making indie 2D multiplayer games. It includes authentication, matchmaking, real-time sync, leaderboards, a virtual economy, social features, cloud saves, and an admin dashboard. Developers can build ephemeral matches or persistent worlds with lazily loaded zones, and update Lua match logic while a match is running, with changes taking effect on the next tick. Official client SDKs are listed for Unreal, Unity, Godot, Defold, TypeScript/JavaScript, Dart/Flutter, Lua, and LÖVE. For monitoring, Asobi lists OpenTelemetry integration, structured logging, and telemetry events for matches, queues, and connections. Its Apache 2.0 core can run locally with Docker Compose or be self-hosted as a Docker container. Asobi Cloud is hosted on Hetzner in Germany and uses EU-only infrastructure subprocessors, but is invite-only while studios are onboarded. Cloud pricing is flat per environment, with current plans available through the console; prospective users can ask on Discord for a trial environment before paying. The project is pre-1.0 and single-node by design, and is not intended for twitch-latency AAA shooters.