Unleash the Power of Multiplayer Gaming

Build online games fast and easy with server-authoritative multiplayer engine.
Perfect for MMOGs, MOBAs, session-based games, survival and first-person shooters.

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Start building multiplayer with Fenrir Server

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Fenrir is a Multiplayer Engine plus Backend as a Service

Fenrir is a free and open-source Multiplayer Engine that can be self-hosted, or deployed in our managed cloud.

Multiplayer Engine

Open-Source Multiplayer Engine

Our open-source SDK is available for free under MIT license. Dedicated Fenrir Server can be self-hosted on any operating system including Windows, Mac, or Linux.

Backend as a service

Modern backend as a service

Fenrir Server has a native support for Docker and Kubernetes. Our cloud platform allows you to host Fenrir games, without needing to worry about infrastructure costs, scaling, or maintenance.

Documentation and Tutorials

Read Documentation
Download Sample Project
Documentation

Solve your multiplayer needs with Fenrir Multiplayer Server Stack

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  1. Building multiplayer games with Fenrir is easy and fast
  2. Support cross-play on all major platforms
  3. No need to worry about high-performance netcode
  4. Focus on building fun games, and leave infrastructure and scaling to us

What you can achieve with Fenrir Multiplayer:

Build multiplayer games without writing a single line of netcode
Run game server code in the cloud, don't worry about infrastructure
Scale resources automatically, pay for what you use
Deploy updates quickly without downtime

Technology includes:

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Server-authoritative networking stack
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Docker Containers as a backbone for servers
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Runs on both VMs and Bare Metal
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Built-in Deterministic ECS framework
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Cloud dashboard with observability out of the box
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Configurable matchmaking with customizable rules

Advantages of using Fenrir Multiplayer

  1. Modern technological stack that integrates well into existing pipelines
  2. Open-source SDK, easy to develop with and debug
  3. Allows for large multi-team development
  4. Quick, agile iteration using modern CI/CD and SDLC
  5. Updates with no downtime out of the box
  6. Fully customizable, both engineer and designer friendly
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Pricing

With Fenrir Cloud, pay only for what you use with no hidden fees.

Starter

Perfect for beginners, small studios or students, or testing out the product.

Supports all features with up to 20 CCU.

Try for free
Standard
Our standard plan that works for both indie and large developers.
  • Pay only for what you use
  • Cloud Matchmaking
  • Load Balancing
  • Auto Scaling
  • Dynamic UDP port range
  • 2 vCPU, 4GB of Memory
$10 / 100 CCU
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Enterprise
Our premium plan is perfect for Enterprise and large studios.
  • Everything in Standard Plan
  • Unlimited CCU
  • Isolated Infrastructure
  • Fixed UDP port
  • Customize for your needs
  • 24/7 Premium Support
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FAQ

Fenrir Cloud is a backend-as-a-service platform that allows you to deploy Fenrir in a serverless environment.
No! Fenrir Cloud is completely optional. You are absolutely free to deploy Fenrir multiplayer stack yourself.
Fenrir currently supports Unity game engine, but the C# SDK can be integrated into any engine that supports a .NET runtime. We plan to add support for Godot and Unreal Engine in the near future.
No! But you may need to write client and server side logic, depending on the game you are building.
Yes! You can download Fenrir SDK soure code from our Github.
Fenrir currently supports UDP protocol, with TCP and WebSocket support coming soon.
Fenrir Server currently supports Windows, Mac and Linux. Fenrir Client currently supports any platform that allows UDP sockets. Support for WebGL is coming soon!
Server authority means that main gameplay logic is executed on a server, to make sure players can't cheat by hacking their game client.
Although Docker is a recommended way to deploy Fenrir, it does not have to run in a Docker container. You can run it as a standalone .NET application, or integrate it directly in your game client.
Yes! Fenrir was designed mobile-first and with high performance in mind.

Contact us

Let us know how we can help you ship your next multiplayer game. We will try to respond as soon as we can.

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