If you're looking to add some more horror elements to your D&D games, namely based on different folktales, which are rather bloody, when you go and look at them, then you'll want to check out Wickerpunk, a new RPG supplement that's up on Kickstarter now.
From the campaign:
Hi, we're Crow Land Publishing, and here's our first book, Wickerpunk. A supplement book for Dungeons and Dragons 5th Edition, with application for all fantasy and horror games, such as Pathfinder, Call Of Cthulhu and even superhero games, like Champions. It will be 275 pages.
Folk horror – horror and supernatural fiction that relies on elements of the past, folklore, superstition, the dreadful majesty of nature, the darkest urges of old religion. And old gods. Where the landscape itself is a symbol of fear and dark majesty. Heroic fantasy – a dream of blades and magic, a dream of defiance of the dark powers of the world, where we can be our truest ideals of our self. And when these genres collide – we have Wickerpunk. A genre in which the ancient and natural world of the Wyld meets the imperialist world of Industry.
The campaign is already up and over its funding goal (being fair, it wasn't looking for a ton) with 28 days left to go.