The Nightmare Slime is a Nightmare Mode monster that spawns once the Keeper of Souls has been defeated. It is a black slime that has black mist surrounding it. It inflicts the Nightmare (Debuff). It is very hard to see at night, and will blend in with its surroundings.


  • HP: 500
  • Damage: 110 (Melee)
  • Defense: 50


  • 1 gold coin (100%)
  • Soul of the Haunted 5-10 (50%)

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