The Nightmare Flower is a 'harvestable' that was introduced during the Ratboy's Nightmare Update. It is one of the many collectibles that are needed by the players in order to complete the entries of the Itempedia of the Nightmare.
Like most items seen in the zones of The Road and the End of the Road, the Nightmare Flower is typically found on the sides of the roads. The Nightmare Flower produces a faint glow that can be easily detected in the darkness of the zones, similar to other harvestables of the Frontier. It can also be obtained as a possible reward from the Ratboy's Nightmare Dungeon.
In appearance, the Nightmare Flower appears to be a black-and-red flower with several curled whisker-like leaves on its 'body' and the 'head'. A small white gemstone can be seen underneath the 'head' of the flower, supported by a crimson-colored stem.
Players may trade in the Nightmare Flower to the Gargoyle while making a deal with the NPC, which is collectively known as the Gargoyle's Deals. However, this can only be traded in if and only the deal is available throughout the servers, as one deal can only appear each real-life day.
- The Nightmare Flower is not to be confused with the Nightmare Plant that can be cultivated by the players from the Gardening feature in the Frontier.