Custom server is required to send Custom RPCs and generally is strongly recommended over playing on official servers.
Impostor is a C# implementation of Among Us server with 1st party Reactor support.
- Install Impostor following their docs
- Download Reactor.Impostor.dll from NuclearPowered/Reactor.Impostor/releases and copy it to the server's
- Your server now supports modded handshake and custom rpcs! 🎉
Reactor.Impostor provides an API that you can use in your Impostor plugins to handle the custom rpcs on the server side.
Hindenburg is another option, written in TypeScript NodeJS although not supported officialy by us.