The ship, server?
Killing floor Server?
Chivalry Medieval warfare server?
L4D2 server?
CSS server?
Unreal tournament 3 server?
Terraria server?
Starbound server?
I'm half interested in all of these, The ship would be cool, Killing floor would be great especially for Tournaments, Chivalry is good for the people who like it, L4D2 is the same as Chivalry, CSS I would get on for just shenanigans, UT3 for people who enjoy it, Terraria for people who like the game, Starbound... well this game has 100's of worlds the size of terraria so... yeah,
But I can understand why none of these are good ideas.