Nightmare King Grimm
A beetle mage consumed by despair, risen as a nightmare king to devour the world.
Nightmare King Grimm is a terrifying manifestation of the original Grimm, a wandering beetle mage who once sought to protect Hallownest from nightmares by consuming them. After his death and subsequent resurrection as a vengeful spirit within the Hive, he was corrupted by the absolute despair of the infected realm. This corruption twisted him into a colossal nightmare entity that seeks to consume all life in the kingdom, serving as one of the most formidable trials for any vessel brave enough to enter the Nightmare Realm.
- Role
- Boss / Corrupted Guardian
- Affiliation
- Nightmare Realm / Grimm Troupe (Corrupted)
- First Appears
- Dormant Chamber (Deepnest) & Nightmare Court
- Status
- Defeated by the Knight; Spirit dispersed upon defeat of the Pure Vessel's corruption
Lore & Background
Originally, Grimm was a traveling beast who believed that nightmares were born from fear and could be stopped by fire. He formed a troupe of warriors to hunt down these dark visions, eventually settling in Hallownest where he became a legend among the bugs. However, his methods were flawed; he could not truly destroy the source of the infection, only suppress it temporarily. When the Radiance's influence spread unchecked, Grimm fell victim to the very nightmares he fought, his spirit trapped and twisted by the despair that permeated the Hive.
In Their Own Story
The air in the Nightmare Court tastes of ash and old blood. Shadows stretch unnaturally long, detaching from their owners to dance on the walls. In the center stands a figure of impossible height, his cloak tattered into the very fabric of the nightmare itself. He does not speak; he only breathes, exhaling clouds of soot that choke the light. The Knight feels the weight of a thousand fears pressing against its mask, a silent scream echoing in the void where Grimm's mind once was. There is no mercy here, only the hunger of a king who forgot his name.
Reader's Guide
Nightmare King Grimm originates from the corruption of the original Grimm within the Hive, eventually manifesting as a boss in the Nightmare Court after the Knight awakens him by defeating the Grimm Troupe's leader. In combat, he is a massive, multi-phase encounter. Initially, he attacks with heavy sweeps of his scythe and summons nightmare orbs that explode on contact. As health depletes, he transforms into a more chaotic form, levitating and unleashing rapid-fire projectiles while summoning smaller nightmare minions to distract the Knight. The fight takes place in a surreal, shifting arena filled with floating debris and dark energy. Success requires mastering the game's dodge mechanics, specifically the dash, to avoid his wide-area attacks. Defeating him grants access to the final areas of the Nightmare Realm and is essential for obtaining certain endings.
Did You Know?
- Nightmare King Grimm is not a separate entity but the corrupted spirit of the original Grimm trapped in the Hive.
- His scythe, the Nightmare Scythe, was originally crafted by him to hunt nightmares before his corruption.
- Defeating him permanently removes the Grimm Troupe from Hallownest if they are summoned again.
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