Supercraft GSB provides a backend-as-a-service tailored for developers of multiplayer games. It consolidates essential off-game functionalities required by any networked game into a single REST API that includes features such as player authentication (anonymous, email, OAuth), persistent data storage for players, leaderboards, server registry, matchmaking, live configuration, and in-game economy management. Designed specifically for indie and mid-sized studios utilizing Unity, Roblox, Godot, or custom game engines, its REST-first approach allows for easy integration with any engine capable of making HTTPS requests, eliminating the issue of SDK lock-in. Additionally, native SDKs for popular engines are currently under active development to enhance accessibility. The platform offers a free development tier that allows up to 2,000 monthly active users and 2,000,000 API calls each month without requiring a credit card. Paid tiers are also available, featuring scalable and transparent pricing without unexpected charges for API calls, ensuring developers can plan their budgets effectively. This makes Supercraft GSB an appealing choice for game developers looking to streamline their backend services.