Treat yourself to a massive number of discounted games on Steam this Halloween with Valve's Steam Halloween 2013 sale, which is currently offering discounts of up to 85 percent off on a slew of scary, creepy and zombie-filled games for PC.
Nearly 150 games and game collections for Mac and Windows PC are marked down during the Halloween sale, which runs until Nov. 1. The sale includes a host of new and recent releases, notably Amnesia: A Machine for Pigs, Deadly Premonition: The Director's Cut, The Typing of the Dead: Overkill, Rise of the Triad, The Wolf Among Us and Outlast (pictured). There are also a handful of bundles marked down, including the Dead Space pack, the BioShock franchise pack, Left 4 Dead and Left 4 Dead 2, the Penumbra collector pack and the FEAR collection.
For the truly brave and frugal, titles like The Walking Dead: Survival Instinct and Aliens: Colonial Marines are also available at savings of 50 percent off and 75 percent off, respectively.
Titles that might not immediately come to mind for Halloween are also discounted for the holiday sale, including The Next Big Thing, Joe Danger, Monaco and Brothers: A Tale of Two Sons.
For the full list of cheap titles, head to the Steam sale website.