[nickdodd25]

Not really sure if a npc would affect cpu that much, but i really never tried. Something you could do is maybe get a group of testers together like 5 and just gestimate your cpu/memory with them 5 players.

Or just start your server off with 20 to 50 slots and work up from there, its not like a server opening for the first time will get to 500 players instantly.