Now I get it, I'll try that! :)

EDIT:
That didn't work, according to the first character, the code is: Z7RIR-AGTRA-GEDDF, and if you use the meaning of some of them as numbers, the code is: 076IR-AGTRA-9ED0F
076IR-AGTRA-9ED0F, and still doesn't work...

I will re-check this in case I miss something.

How many attempts have you made? You might be locked out now...

Like 6... :( Every combination I can find... :(

Also these codes don't work:
Z7TIR-AGTRA-GEDDF
07TIR-AGTRA-9ED0F
Z76IR-AGTRA-9E0DF
076IR-AGTRA-9EDDF

You can try if you want ;)
The list of games, in the order of those numbers:

Zero Gear
7 Wonders: Treasures of Seven
Tom Clancy's Rainbow Six Lockdown
I-Fluid
Rune Classic

Analogue: A Hate Story
Garry's MOD 9
Torchlight
Rochard
ArcaniA: Fall of Setarrif

Gish
Endless Space
Deponia
Dark Void™ Zero
Fray

:o you're almost there; just make sure you read over all the game names carefully.

It was: 076IR-A9TRA-GED0F
I decided to try one time and that turned out to be it... sorry.
Thank you for the puzzling challenge and the puzzling game.

Azrael360, hope you get it man. You've worked this hard on it. :)

I fell no loved now ;(

Thanks for the huge hint/solution.

LOL, you beat me!! :D
I noticed that I got wrong one code, and when I introduce it, it was already redeemed :P :D

Thanks guys, at least I know how to resolve it!, and adambiser, don't worry and enjoy the game. At least the game is now in good hands instead of forgotten and not redeemed ;)

Thanks. Also, congrats ^__^

Azrael, well done to you too, even though you didn't get it; all I can do is give you some upreps for putting in the effort :P Maybe next time.

I love you now (in a good way) and +1 to all your posts for your awesome help ;)

Ha ha, thanks! and thanks for your game! :)

Thanks. I wasn't sure about the 9 or not.
If I get a key for something I think you'll enjoy, I'll let you know. :)

Thanks, and don't worry my friend, congratulations and enjoy your game! ;)

Np, and thx to Austrobogulator for riddle, I feared that I'm wrong for sec but in the end it was as easy as it looked ^^ (you was thinking to deep into that Azrael360 :( )

Enjoy game adambiser.

LOL, that code was there un-redeemed for 40 days! Must be a record...