I don't feel like being clever.
Commando Jack (STEAM): 6ZL4H-RYFG4-G7N2G
Victim of Xen - T8CL0-5CNYQ-9BIAL
An Imp? A Fiend! 55WM0-AX5A7-KXTAR
Frederic: Resurrection of Music PV866-FKC4K-3E4GY
Sparkle 3 Genesis IBLGG-WBNC6-6MZ0Q
Major Mayhem (Steam)
?IZV0-TI78Z-QTZQC
? = the first letter of the English alphabet
Ballpoint Universe - Infinite (Steam)
IVYKW-RNTL8-KPER?
? = a number that starts with t
Knytt Underground (Steam)
3IIVX-FNVVG-W??R?
? = I have no imagination, and it's C.
Memories of a vagabond (STEAM): 6?HA9-6QHH7-4KCYP
? = The best single digit number
Hacker Evolution Duality (STEAM): QMI?Y-7CZL7-7NK30
? = The second best single digit number
All I want is 75% off The Typing of the Dead (I missed the Humble Bundle). But Steam is letting me down. I'll let them know this by buying $40 worth of games.