Minecraft wiki entry for Player_versus_Player, associated text: Prime rule. Do not trust anyone. If there is an online map, use it to track locations of people. Stay away from other players. If they offer to let you in their faction just if you do something very simple for them, there may be something underhanded about the deal. They might kick you out or even kill you immediately if they give no notice they want you (on servers with the Factions plugin for Bukkit). Be ready for that just as ready as when attacking. Assume that everyone will stab you in the back. Also on some servers, there are teleport commands. On a PvP server, if you get a random teleport request from someone you don't know, never accept it! They only randomly teleport to look for a victim to raid and kill. Also, don't accept it if you think you have better stuff, you may not know what they have in their arsenal and also on some servers there is a /back command. Even if you kill them, they can teleport back and camp there. If someone wants to fight in a 1-versus-1 face-off, be careful if you accept. They may bring someone along to "watch." Take this advice with care, since putting too much trust in even your best combatant might get you in an irreparable situation.