Hmm. Both games are still unredeemed.
Hint: the System Shock 2 code was somehow damaged by Shodan and somehow letters and numbers got confused.
And for those that need a hint even for the first code: my mistakes (in what I wrote in the first post) are your gain. :-)
If no one redeems the codes until the end of the weekend, I'll have to ask Dr. Random instead to give them to someone interested. So if you're interested in one of the games, but not in solving a puzzle for it, just say so and if the game is still there on sunday evening, you might get it.