Metaplay

Metaplay is a backend platform for building and operating live service games, made by Metaplay Oy of Helsinki. It combines a Unity client library, a C#/.NET server-authoritative backend, devops tooling and a LiveOps dashboard, and ships as source code that deploys into the studio's own cloud.

What It Is

Metaplay is an SDK and backend for game teams. Game logic is written once in C# and runs on both client and server, with the server acting as the source of truth to resist cheating. The SDK includes a Unity client library, a game server built on an actor-based architecture, cloud deployment tooling, and ready-made systems such as guilds, leagues and leaderboards, matchmaking, localization and server-side in-app purchase validation.

LiveOps Dashboard

The dashboard covers player segmentation, A/B experiments, over-the-air game config updates, scheduled in-game events, offers, in-game mail, push notifications and player support tools such as player lookup and state inspection. According to the FAQ it can be customized with custom pages and admin actions, and a browser demo is offered.

AI Tooling

The Metaplay Agent installs skills for planning, implementing, reviewing and upgrading Metaplay code inside AI coding tools such as Claude Code, Cursor, Codex and Windsurf. Two MCP servers are described: a Docs MCP server for SDK documentation and source, and a Portal MCP server for querying running game infrastructure (live DAU, logs, environment status), read-only by default. The same MCP servers and APIs can be used to build custom automations.

Adoption and Deployment

The FAQ says Metaplay supports incremental adoption in existing Unity games, including migrating from backends like PlayFab, Firebase or Nakama. Games can run locally with an embedded mock server, on Metaplay managed cloud, or be self-hosted on Kubernetes (AWS is documented). Supported clients are Unity 2020.3 LTS and later on iOS, Android, desktop and WebGL.