If you're looking to put a fright into your seasonal gaming, or just want to give the gift of terror to someone, this deal for Five Nights At Freddy's is probably the best value you'll find. The listing over at the Humble Store was already very good, but they've gone and reduced it to just over a pound.
The stuff of YouTube gold, this horror / puzzle game is so nerve-wrecking that none of us here at Dealspwn have gone near it. Its sequel is already out, but if you want to see what all the fuss is about this is a great opportunity to do so. At least with the savings you can invest in new underwear. Thanks to supernatural_liz @ HUKD!