Last day of the Halloween sale, what games are worth checking out?

Left 4 Dead Bundle, Fallout 3, The walking dead, Everyone xd

Plants VS Zombie?
Darksiders series
Monaco
Swapper
DmC series
Bioshock series
Sleeping dogs

I bought Deadlight and Aliens Colonial Marines, and I haven't regretted buying either of those. Deadlight is plain awesome, I'm already on 40% of the story and it gets better and better ;)

Ninja Blade, Giana Sisters Bundle, Legacy of Kain Collection, Walking Day 400 Days (Amazon), and many more ;)

Every Sherlock Holmes game (besides Persian Carpet) if you like point and click adventures.

I literally bought every game on the sale.
(ok, with the exception of the ones I already owned). So far I have enjoyed watching my girlfriend play "outlast" more than anything....ever. She has thrown my controller no less than 6 times. Deadlight was a good buy as well. I bought the L4D package for 6 friends since it was such a good deal and a great game. I have yet to try the rest. At least for more than 20 seconds.

Bad Rats.

I bought Sleeping Dogs, Slender: Arrival, Walking Dead, Deadlight, Darkness II, Bioshock 1+2, Giana Sisters: Twisted Bundle...

But there are so many good games that are worth to take a look! I just can't buy them all :D

Any games worth buying for 2,49€? That's all I got left in my Steam wallet :P

The Swapper, Vampire: The Masquerade - Bloodlines, and Costume Quest are all game I enjoyed tremendously.