Nightmare Fuel

"All of my fears in liquid form."

- Woodie

Nightmare Fuel is a Refined Item crafted with 4 Dark Petals. A Prestihatitator is required to unlock the recipe. It is also dropped by Beardlings, Crawling Horrors, and Terrorbeaks, dropped when a Touch Stone breaks; drops from damaged Clockwork Monsters and Splumonkeys in the Ruins, and has a slim chance to be dug up from Graves. It can be used to make several Magic items.

Gathering
When a character's Sanity decreases below 40% of their maximum (80 for most characters, 60 for Wes, and varies for WX-78 based on the upgrade level), all Rabbits change into Beardlings and can be killed to gather Nightmare Fuel (along with Monster Meat and Beard Hair). An easy way to do this is by trapping a large number of Rabbits and then lowering Sanity to 80, after which they can all be murdered all at once while in inventory. However, be careful as this is liable to trigger the Krampus by advancing the player's naughtiness level beyond the threshold.

Alternatively, Nightmare Fuel can be acquired by killing Crawling Horrors and Terrorbeaks. Crawling Horrors are easier to deal with than Terrorbeaks; the latter don't appear until Sanity is very very low, so it's possible to kill Crawling Horrors one at a time.

A safer and simpler way to get Nightmare Fuel is to capture Bees with a Bug Net and then release them at an Evil Flower patch. This will eventually cause more Evil Flowers to spawn, which can easily be crafted into Nightmare Fuel.

For more detailed ways to farm this, go to Guides/ Nightmare Fuel Farming

Trivia

 * The term "nightmare fuel" is a common phrase on the Internet used to describe works of fiction, or scenes therein, that are extremely likely to disturb and/or frighten the audience.
 * Although beardlings will drop this, beardlords will not.
 * When dropped on the ground, it appears as pulsing goo.

Gallery
Ekran Resmi 2013-10-25 21.09.19.png|Dropped Nightmare fuel.