"The harvest moon glows eerily."
Nightmare Fuel is a post-Moon Lord crafting material dropped by most Pumpkin Moon enemies after The Devourer of Gods has been defeated. It is occasionally used as an alternative to Endothermic Energy, or in conjunction with Endothermic Energy and Phantoplasm to make Ascendant Spirit Essences.
- "Nightmare fuel" is an informal term used to refer to highly disturbing content.
- The item is a reference to the item of the same name from the game Don't Starve, which is obtained from insanity based creatures.
- Its tooltip, "May drain your sanity," is a reference to how many nightmare fuel items make the player's sanity drop and can only be obtained after going insane.