About Game Server Backend
GSB (Game Server Backend) is a hosted backend platform for studios and indie developers building multiplayer games. It bundles the operational infrastructure a multiplayer title needs behind one API, so teams can ship the game without rebuilding backend services from scratch.
The platform covers matchmaking, leaderboards with global and regional scopes, player profiles, persistent JSON state per user, a server registry for community-server discovery, in-game economy primitives, and a live-ops configuration layer that lets you push gameplay tuning without a client patch. Three authentication paths are supported out of the box: anonymous accounts that upgrade later, passwordless email sign-in, and Steam OpenID for PC titles.
Drop-in SDKs ship for Unity, Unreal Engine, and Godot. Each one wraps the underlying REST layer in idiomatic, type-safe APIs so existing engine patterns work without ceremony.
What Game Server Backend does
Crux provides backend services specifically designed for multiplayer game developers, offering tools such as player authentication, data persistence, leaderboard capabilities, and matchmaking. With a focus on live games, it aims to streamline game development by connecting essential components within one platform, enabling seamless gameplay and efficient backend integration.
Crux allows developers to integrate its services through an API that supports various operations like player authentication, score submission, and matchmaking. Developers can upload their game server builds, manage player data, and utilize features like live configuration without the need for multiple disparate tools, all while monitoring performance through a dashboard.
Crux is tailored for indie and mid-size game studios developing multiplayer games with a need for efficient backend operations. It offers a streamlined solution for game developers looking to minimize the complexities associated with integrating various backend services, supporting engines like Unity, Roblox, and Godot.
Based on gsb.supercraft.host, read on Sep 16, 2026.