The Nightmare Mushroom is one of the many harvestables that can be found in the Frontier. They are commonly seen in Topple Town on most occasions, although it is possible to see in other locations of the Frontier that include the following:
- Ancient Forest
- Celestial Peak
- Hoodlum Falls
- Petrified Grassland
- Rabbit Hole
- Rubble Spring
- Topple Hill
- Topple Lake
It can also be obtained from various sources that include the following:
- A possible gift from the Interdimensional Traveler.
- A possible reward from the Firefly Quest.
- A possible reward from the Treasure Chest.
The Nightmare Mushroom is a twisted mushroom possessing black stems and branches and glowing nightmarish-purple caps branching along the sides of the main stem.
It is possible for players to exchange Nightmare Mushrooms for gold during Slayer's Tasks if the task card is currently active. Other than that, it can be sold to a selling vendor at a selling price of 7,000 gold.
- Like most items in-game, it can be acquired from the Otherworld Tower dungeon.
- It is typically found in Topple Town, often appearing near the waterfall, in caves, or under the front porch of Red Ogre Inn.
- This mushroom could have originated from The Nightmare due to its name, its looks and its description.