Minecraft Realm
KingKiwiSMP is a Minecraft Realm, made by Ben Lewthwaite, for my friends. it has:
a main world, where there is a big hub, to talk about anything, and anything.
a Free play world, that is just like the main world, but without a hub, and NO PvP.
and finally, a PvP battle royale world, where it's a 1v1v1 fight to one man standing.