/players — display online players names

@[playername] [message] — send a private message. If player is offline they will receive the message at login.

/unstuck — teleports player into the air to get unstuck from places

/avatar — (in Alpha 5) randomizes player avatar.

/Sethome -- Set your home location in the World.

/Home -- go back home 

/unclaim -- You must stand on the Property you want to Unclaim.
Works with Online- and Offline-Users.