I'm thinking of a simulspace game where EP characters play some kind of a social network game of zombie survival. It carries with it some faint nostalgia as the game should be held in some pre-Fall area. The objective is to rebuild earth and cure it of its Zombie taint, if you do live long enough to do that of course.
Players should treat it like they would an MMO; they could log in and log out at any time, but death is permanent. Logging out during a crisis though is frowned upon and is thought of as cheating. Any takers? Any amount of players should be good enough, the skills you carry in realspace carry over to simulspace.