Check out the Indie Royale Halloween Bundle
Indie Royale is a site that provides bundles of PC Indie games and allows you to set your own price on them. There is a minimum price that changes dynamically based on what people are paying, and they usually include bonuses for higher amounts. They also include codes for most games to be registered on platforms such as Steam and Desura.
Recently they’ve launched a Halloween bundle which includes five interesting games. Of the five titles you will find Pathologic, a first person psychological horror game; and Home, a sidescrolling murder mystery. The other three games are just as interesting though not strictly horror, including titles such as Telltale’s Sam & Max: The Devil’s Playhouse. At the time of this post the minimum is just over five dollars.