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DarkRift 2

github.com

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Spec score 8.0 #14 of 29 in Game Networking Middleware

What it is

DarkRift 2 is a free, open-source networking library for multiplayer experiences using an authoritative server. It follows a client-server model and supports Unity and .NET, with servers embedded in Unity or run standalone. TCP and UDP transports provide bi-channel communication, and the project says UDP overhead can be as low as 3 bytes. Server clustering is described without concurrent-user limits. Prometheus metrics are built in for monitoring systems such as Grafana or Datadog, alongside custom metrics. Other listed capabilities include basic matchmaking and a chat filter. Developers can replace the Bichannel Network Listener with another low-level networking library. Support is community driven through Discord; the README says Unordinal is no longer able to maintain the project. Building requires Visual Studio 2022 or newer. Most source files use MPL 2.0, while Unity scripts use MIT. Release 2.11.0 is marked pre-release, with problems still to resolve.

Spec sheet

Purpose
DarkRift is a multithreaded networking library for multiplayer experiences that need an authoritative server.Read 8 Oct 2026 · github.com
Support
The project says support is entirely community driven and directs users to its community Discord.Read 8 Oct 2026 · github.com
License
Most source files use MPL 2.0, while Unity scripts use MIT.Read 8 Oct 2026 · github.com
Build requirement
The project requires Visual Studio 2022 or newer to build because at least one Visual C# project fails in Visual Studio 2019 and earlier.Read 8 Oct 2026 · github.com
Extensibility
Developers can replace the Bichannel Network Listener with another low-level networking library.Read 8 Oct 2026 · github.com
Maintenance
The README says Unordinal is no longer able to maintain the project and the community now cares for it.Read 8 Oct 2026 · github.com
Metrics
Built-in Prometheus metrics can integrate with monitoring solutions such as Grafana or Datadog.Read 8 Oct 2026 · github.com
Other features
The project lists basic matchmaking support, custom metrics, and a chat filter.Read 8 Oct 2026 · github.com
Performance
The project says UDP overhead can be as low as 3 bytes.Read 8 Oct 2026 · github.com
Release status
The 2.11.0 release is marked pre-release, with the note that problems remain to be ironed out.Read 8 Oct 2026 · github.com
Scalability
The project describes server clustering and says it has no concurrent-user limits.Read 8 Oct 2026 · github.com
Server modes
It supports Unity embedded servers and standalone servers.Read 8 Oct 2026 · github.com
Transport
DarkRift 2 supports TCP and UDP with bi-channel communication.Read 8 Oct 2026 · github.com

Plans and prices

DarkRift 2 Free Free and open source · no CCU limits Read 8 Oct 2026 · github.com

Every DarkRift 2 plan and price →

Strong points and limits

Strong points

  • Free and open source
  • Supports both TCP and UDP
  • Provides Unity and standalone server modes
  • Includes Prometheus metrics and matchmaking
  • States no concurrent-user limits

Limits

  • Project maintenance is community driven
  • Version 2.11.0 is marked pre-release
  • Building requires Visual Studio 2022 or newer
  • Support is directed to community Discord

Who it suits

DarkRift 2 suits developers building authoritative multiplayer servers with Unity or .NET who need TCP/UDP transport and clustering. It is intended for teams willing to rely on community support and pre-release software.

Verdict

DarkRift 2 offers a broad multiplayer networking base with flexible server modes, transports, and metrics. Its pre-release status and community-maintained support should be weighed before adoption.

Where Specifiction places it

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