200 players without inventory interactions and what so ever, which must also be handled by the server (to avoid conflicts/duplication).
Also keep in mind that players in a real mmo world would spread out very wide, which also increases the active radius on mobs which must get handled in realtime (movement, attacks, broadcasting to nearby players, etc.).
Imho the included dedicated server provides an excellent base to begin with, but it can not be used for anything which requires more performance.
I can be wrong about this, but doesnt the included dedicated server implementation only utilize 2 cores?
A big community test to not only verify but test the capabilities would be awesome!