There is of course a limit, every machine has a set amount of RAM and CPU cores. But the limits we set are far beyond what most games would ever need. Yes, you would need more RAM and a better GPU if you have resource intensive maps, but that’s on the client side, for your own PC, not the server itself.
Most Foundry instances will use 75MB to 150MB of RAM. We set our limit to about 4GB of RAM per Foundry instance to allow it plenty of room to peak to while loading the world itself (where it could grow to 2GB and more for a few seconds).
That being said. The peak usage times are generally around 8 to 9 PM GMT for European serves, and 8 to 9 PM EST for North American servers, but it’s mostly on Saturday and Sunday, and there shouldn’t be any effect on your games during those peak times. Making sure nobody notices is what our work is all about, and we’ve tweaked that extensively so it really makes no difference to users whether it’s a busy time or not.
After all, If the servers went bad/slow during peak time, then that would mean we’d have the highest number of users complaining and being affected by it