StarCitizen is it's own little thing and by little thing I mean confusing as ****.

Two things you have to understand with StarCitizen.

1) To play the game you need a game pacakge for the MMO and for the SP depending on which one you want to play. They are listed as "Squadron 42 Digital Download" and "Star Citizen Digital Download" where squadron 42 is the single player campaign and Star Citizen is the MMO thing.

2) You can buy ships independently to the game packages or you can buy a game package that comes with a ship.

https://robertsspaceindustries.com/pledge/game-packages

The best game package (cheapest) right now is this one.

https://robertsspaceindustries.com/pledge/Packages/Aurora-MR-Star-Citizen-Squadron-42-Combo

or

https://robertsspaceindustries.com/pledge/Packages/Mustang-Alpha-Star-Citizen-Squadron-42-Combo

You can also buy a package with just one of the games/ Sq42 or SC and then buy a 15 dollar upgrade that adds the other game to which ever one you have. To play the game currently (the alpha) you have to have the "Star Citizen Digital Download". They expect the Sq42 game to be released at the end of this year or beginning of next year. But that may change. They really dont have any date locked in. It is more a "it will release when it releases."

Also when you go to register your account you can input a referral code. You can input one from here at SimHQ or you can easily find one around the net.

http://simhq.com/forum/ubbthreads.php/topics/4180049/Referal_Codes#Post4180049