For what its worth i run my own hosting for development. Im not trying to scale in this same fashion, but i put a single Godot process inside a Docker container. This is typically what a web host would allow you to do when you define a service for hosting. Running a virtual OS has some cost, but with some added security of a sandboxed envoroment, so if i was to scale i would probably run a script to put N number of game processes on a single container each assigned their own port, in a defined range, via a command line argument. Then a spin up multiple containers as i need them to meet demand. (And limit this number to the resources of the host machine) Obviously you still need a central server for clients that haven’t yet selected a room. If that one service gets overloaded you will have to have some means to load balance people that haven’t selected a room. You might want to do some simple REST backend to do a one-off query to find which central service to connect to. Or maybe this “centeal-service” is just the REST api that provides a list to all the available rooms on the internet (room name, IPs and ports).