You're all ever so welcome. The games are infinitely better in all'a your hands than sitting hidden in a file forgotten on my computer, so very happy to see them being used (or topping up our respective libraries of shame ...). ^_^
I'm ever so, ever so sorry to those of you who found that some keys didn't work. It looks like there's a pretty strong indication that the games marked as "might not work" have already been redeemed. I'd hoped that wasn't the case, and wasn't sure how to verify their status without actually redeeming them - but again, my sincerest apologies for the disappointment for those of you who got those. I think those respective keys are marked as such on the spreadsheet, but for clarification the following now seem unlikely to work;
A Boy and His Blob (confirmed not to be working)
Advent Rising
Akane the Kunoichi
Blade Symphony
Cognition: An Erica Reed Thriller+OST
Dead Island (confirmed not to be working)
Double Dragon: Neon
Dwarfs!?
Go! Go! Nippon! My First Trip to Japan
Moebius: Empire Rising
Q.U.B.E: Director's Cut
Sakura Spirit
Stardust Vanguards
Sword of Asumi - Deluxe Edition
Teslagrad (confirmed not to be working)
Velocibox
Wolf Among Us (confirmed not to be working)
I've got a few more recently-purchased keys that I hadn't gotten around to documenting, too, so I'll add those in due course, as well.
Hope you all have splendid days, weeks and lives ahead of you. "Be awesome to each other", seems like an appropriate quote for the day.