Torchlight ($9.95) - Direct2Drive
There's no indication of how long the deal will last. For Steam users, this game CANNOT be bought on D2D and activated on Steam. (More Info) So, if you're into Steam Achievements, you won't be able to earn them here.
UPDATE: On the US Direct2Drive website, today's Ornament is Torchlight:
This has occurred despite the game already having a 50% price drop. It is suspected that, due to Steam's preemptive $9.99 sale, D2D may be retaliating with an even lower price.
The current estimated price is $7.98 (60% off).
Edited by EliotAndrews, 22 December 2009 - 06:12 PM.