Go here: https://gamesrepublic.com/ Register , and after registering they will give you this game. Go to your games, press download and select the last option, this option is the steam key.
Do you know what grin my gears:in USA the game cost 10$ Goty - 20$ in Europe it costs 15 euro or GOTY - 22,5 euro.So drawing the line europeans pays - 20,3$ or for GOTY 30,5$ . So why the **** I must pay 10$ more than us citizen for the same game????