try playing lost choas...
And all servers end up the same tbh even if they have different rule sets take WoW or dcuo for example
DCUO got pvp and pve servers but both servers have hardcore pvp players so there is really no difference there
WoW has pvp, pve, rp, rp-pvp and tornament servers I played on a few of them and honestly there is no difference rp servers have little to no rp, pvp and pve and rp-pvp have hardcore pvp'ers so again no difference.
So you can have different rule sets all you want but unless enforeced (no one does) there really no difference anyway.
Also each server will have small player bases.