Not quite, you need to connect to their servers to authenticate the game every time you reinstall on a different machine. The key code allows you to do that without having to pay again.
Telltale have said that should they cease to be in business they will release patches that will allow the games to be played bypassing the online authentication.
Oh! Thats cool!
Thank you and Vark.
I have to wait till me dad can get to his emails tomorrow at work. He's the only one with a Paypal account so he let me use his but my codes have gone to his emails. The wait will kill me.
The demo was awesome. I liked the voices, the graphics seemed cool, the controls were perfect and mini game was fun (they did something like that in Ace Ventura but it was pretty hard (you had to use the keyboard) and ended up more annoying then fun).