RecNet Plugin

A BepInEx 6 (IL2CPP) plugin that points the Rec Room client at a self-hosted / private server.

It does this entirely client-side with Harmony patches — no game files are modified on disk (except global-metadata.dat - needed for image signatures). The plugin rewrites the RecNet name-server lookups, swaps in your own Photon credentials, and disables the client-side guards (EasyAntiCheat, TLS certificate pinning) that would otherwise reject a non-official server.

⚠️ This disables anti-cheat and certificate validation on the client. Use at your own risk.

Safety

Using BepInEx plugins may cause anti-virus scanners or Windows Defender to pick it up as a threat.

If you don't trust the complied .DLL, you can build it yourself.

See https://github.com/djdevin/recnet-plugin#from-source

What it does

Patch	File	Effect
Name-server redirect	Patches/SendRequestPatch.cs	Intercepts BestHTTP requests and rewrites the host ns.rec.net → your configured server. Also provides optional HTTP request/response logging for development.
Photon override	Patches/PhotonPatches.cs	Replaces the Realtime / Voice / Chat App IDs (and optionally the Photon name server + port) with your own.
EAC bypass	Patches/EACPatches.cs	Forces EasyAntiCheat "ready" and stubs the challenge-response so the client connects without the official anti-cheat.
TLS bypass	Patches/FuckOffTLS.cs	Skips server-certificate validation so a custom server's cert is accepted.
Promise stub	Patches/PromisePatch.cs	Allows custom global-metadata.dat files without the game crashing.
CheatManager handling	Plugin.cs	Deactivates the in-game CheatManager (which would otherwise boot you from rooms) while keeping it resolvable for account creation / login.

Requirements

• A Rec Room install set up with BepInEx 6 (IL2CPP, bleeding-edge), launched at least once so the IL2CPP interop assemblies have been generated under BepInEx/interop/.
• .NET 6 SDK to build the plugin.
• Your own server endpoints: a RecNet name server, and Photon app keys.

Looking for a custom RecNet server? Try https://github.com/djdevin/recflare

Installing

1. Download the game using https://github.com/SteamRE/DepotDownloader. The manifest ID is 7859140924515540835.
   Example: depotdownloader -app 471710 -depot 471711 -manifest 7859140924515540835 You must use this specific version.
2. Install BepInEx to the game. See https://docs.bepinex.dev/articles/user_guide/installation/index.html. Note that you must use version 6!

From release

1. Download a release from /releases
2. Drop the .dll file into BepInEx/plugins/

From source

The project references the game's interop DLLs, so the build needs to know where your Rec Room install lives. Set GamePath using any one of:

1. A local props file (recommended):

   cp GamePath.props.example GamePath.props

   then edit GamePath in GamePath.props to point at your Rec Room install root. This file is local-only and stays out of the repo.

2. An environment variable:

   set RECROOM_PATH=C:\Path\To\RecRoom        # cmd
   $env:RECROOM_PATH = "C:\Path\To\RecRoom"   # PowerShell

3. On the command line:

   dotnet build -p:GamePath="C:\Path\To\RecRoom"

Then build:

dotnet build

The build validates that GamePath is set and that $(GamePath)\BepInEx\interop exists, and fails with a clear message otherwise.

A post-build step (the DeployPlugin target in the .csproj) automatically copies the built RecNetPatcher.dll into your Rec Room install's BepInEx/plugins/ folder after every build. Since GamePath already points at your install, you don't need to copy anything by hand — just dotnet build and launch the game.

If you need the DLL elsewhere, it's also left in bin/Debug/net6.0/.

Configuration

Start the game for the first time. In BepInEx you should now see a config folder. If not, verify BepInEx installation and version.

Inside config, edit the net.rec.plugin.cfg file and update as needed:

[Server]

• RecNet NameServer Host — base URL of your RecNet name server (like https://ns.rec.net).

[Photon]

• App Id Realtime — Photon Realtime App ID.
• App Id Voice — Photon Voice App ID.
• App Id Chat — Photon Chat App ID.

[Advanced]

• Enabled Advanced Settings — must be true to apply the custom Photon name server / port below.
• Photon NameServer — custom Photon name server host.
• Photon NameServer Port — custom port (0 uses the default, 4533).
• Debug — verbose HTTP request/response logging (only needed for development)

  ⚠️ Debug logs include sensitive data (passwords, auth tokens). Be careful when sharing them.

Project layout

Path	Purpose
Plugin.cs	Plugin entry point, config bindings, Harmony bootstrap
Patches/	Harmony patches (HTTP, EAC, TLS, Photon)
RecNetPlugin.csproj	Build config + interop references (driven by GamePath), and the DeployPlugin post-build copy
GamePath.props.example	Template for your local GamePath.props

FAQ

Can I use this for my own Rec Room server?

Yes. That's the point.

Credits

Based on https://github.com/CannedNet/CannedNet.Client

License

MIT