The Survival (PvP) (s.nerd.nu) server is a fee-to-use public server with no white-lists, no ranks, no pay-to-win, or no pay-for-perks. The server is set up as a nearly completely PvP-enabled map. The only areas that exist where PvP is disabled are the starting spawn area, and particular sections of the server's official arena. Everywhere else, players may freely kill one another. Some play for the PvP, well others just enjoy the potential danger brought on by building in such a hostile environment without ever actually starting a fight, and we welcome anyone who chooses to play either way. The current map is 4000x4000 featuring a mix of vanilla and amplified terrain.
Official Rules: http://www.redditpublic.com/wiki/Rules