Vaasi lets you build scalable, authoritative multiplayer games directly inside Unity. Deterministic float physics, Akka.NET actors, and native runtime data reduce server costs, speed up development, and unlock complex simulations.
Get StartedBackend code runs directly in the Unity editor for a seamless development experience. Test, debug, and iterate with one "Play" button, blurring the lines between frontend and backend.
Leverage deterministic float physics with the Unity Physics package and Burst. Drastically reduce network traffic and enable authoritative simulations for thousands of clients on a single machine.
Powered by Akka.NET, Vaasi uses the actor model to isolate each player's state. This simplifies complex simulations and provides a robust foundation for concurrency and fault tolerance.
Build your entire stack—game client, game server, and web dashboard—with C# and .NET. This unifies your tooling, debugging, and profiling for a massive productivity boost.
Get full source code access, giving your studio complete control to extend, debug, and own your backend logic. No vendor lock-in, just a powerful foundation you can build on.
With an in-memory runtime and reduced network traffic, operating costs are low. Choose between self-hosted, enterprise, or optional cloud SaaS deployments for maximum flexibility.
| Feature | Vaasi Framework | Metaplay | Nakama | Photon Quantum |
|---|---|---|---|---|
| Unity integration | Native | Requires abstraction | None (API only) | Custom engine |
| Deterministic physics | Yes (float-based) | No | No | Yes (integer-based) |
| Actor-based concurrency | Yes (Akka.NET) | Yes (Akka.NET) | No | No |
| Source code access | Full | Limited | Open source | No |
| Networking | Unity Transport (UDP/WebSocket) | Custom / UDP | TCP/WebSocket | Custom netcode |
| In-editor simulation | Yes | No | No | No |
A Unity-native, in-editor backend using Akka.NET, C# Job System, and Burst Determinism is non-trivial to replicate. This unique stack is our core architectural advantage.
Seamless in-editor iteration and full source code access create a UX advantage that competitors can't match without significant engineering investment and a shift in philosophy.
Ready to accelerate your development and build scalable, high-performance multiplayer games? Get in touch to learn more.
contact@vaasi.gg