Crux vs Multiplayer API
Crux
crux.supercraft.hostMultiplayer API
api.michitai.comSide by side
| Figure | Crux | Multiplayer API |
|---|---|---|
| Price from | $10/mo | $25/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 3 |
| Spec score · Game Leaderboard Software | 8.6 (#12) | 8.1 (#16) |
| Intended users | Crux says it is best suited to dedicated-server and multiplayer survival or co-op games, including indie and mid-size studios, and less suited to offline single-player games. | The project says it aims to help indie developers and studios ship multiplayer features without building and operating their own backend infrastructure. |
| Security | Crux describes PostgreSQL row-level security, environment isolation, and separate API key, server token, and player JWT access modes. | The privacy policy says passwords use bcrypt, API communications use HTTPS/TLS, authenticated requests require API tokens, and database access uses prepared statements. |
| Support | Dev includes community support, Launch includes email support, and Scale includes priority email support. | The maker directs users to [email protected] for questions, bug reports, and feature requests. |
Plans
In their own words
Crux
Crux provides multiplayer game backend services for player authentication, persistent data, leaderboards, server registration, live configuration, game economies, and matchmaking. Authentication supports email and password, guest sessions, Google, GitHub, and Discord OAuth, as well as Roblox verification. Developers can store player- or project-scoped JSON documents and configure ranked or seasonal leaderboards with recurring resets. Economy tools handle currencies, virtual items, and inventories through atomic, server-authoritative updates. Matchmaking queues players by game mode and region, then assigns them to live servers from the dedicated server registry. The maker lists Unity, Roblox, Godot, and custom game servers as integrations, with client SDKs for JavaScript, Godot, Unity, and Roblox. The hosted API is documented with OpenAPI, and client SDKs are MIT-licensed; the managed backend is proprietary. Crux has a free Dev plan and paid plans from $10.00 per month. Runtime is a capacity-gated closed alpha for Godot 4 Linux dedicated-server exports, with Dev evaluation limited to admitted projects. Crux says it best suits dedicated-server multiplayer survival or co-op games.
Multiplayer API
Multiplayer API has no write-up on Specifiction yet; its figures are above.