A new humble indie bundle just released today with a pretty impressive line-up of games:
and, if you beat the average purchase price ($6.60 at the time of this post)
- Amnesia: The Dark Descent
- Psychonauts
- LIMBO
- Sword & Sworcery
- Bastion
(also, you get each game's soundtrack)
You could put it all towards charity and not add Amnesia to your Steam account.
I might be missing something... but what exactly is the issue with Amnesia? I'm a little confused.