Amazon.com is having a Halloween video-game sale on horror-themed titles, including Dead Island for $39.99 ($20 off), Aliens Infestation for $22.49 ($7.46 off), F.E.A.R. 3 for $27.99 ($22.00 off), and many more.

The "Un-boolievable" game deal expires at 11:59PM on October 29, 2011, and the offer is only good as long as supplies last. So, if you're planning on getting any recently released horror titles soon, you should hurry.

You can check out Amazon's full list of on-sale horror games here.