X-link to the DRM-free megathread for a new bundle:
Humble Book Bundle Prime Sci-Fantasy from publisher Prime Books is mostly sf/f, but does have three or four horror-ish anthologies at the more-than-average tier price: Rich Horton's Year's Best Dark Fantasy & Horror 2015, New Cthulhu 2: More Recent Weird, Witches: Wicked, Wild, & Wonderful, and Obsessions: Tales of Irresistible Desire (which seems to feature a bunch of creepy seductive supernatural predator tales).