User blog comment:Svenny D./Help please!/@comment-3152785-20120408065603

Means you got it illegaly. you have to purchase a username and go premium in order to go on multiplayer mode. Notch (the game's creator) says that if you wanna try the game, just get the pirated version, and then buy the game later if you like it. So try out single player, and if you like it, buy a premium account, it comes with the game updates if you buy it. If you don't like it, stop playing. Don't quote me on this though. It's still illegal, but Notch is against SOPA and PIPA and all their sister laws/bills.