| Introduction | Bonuses | Experience | Level(Act I) | Level(Act II) | Bestiaries | Bestiaries(Act I) | Bestiaries(Act II) | Bestiaries(Act III) | Bestiaries(Act IV) | Super Unique(Act I) | Super Unique(Act II) | Super Unique(Act III) | Super Unique(Act IV) |

Super Unique monsters are unique monsters, usually tied to quests, and spawn in the exact same place every single game. They differ from random uniques, which are randomly generated by the game engine and do not appear in all games. They include the Three Prime Evils, the lesser evils, and their lieutenants and underlings. They have special abilities, attacks, appearances, and are without a doubt the toughest monsters you will find in the game.

The Darkness Beastiary lists the monster species type by alphabetical order on the left hand side. Below is the list of boss monsters in the order they appear in the game.

   Izual(Special)
   Hephasto The Armorer(Special)
   Grand Vizier of Chaos(Finger Mage)
   Lord De Seis(Oblivion Knight)
   Infector of Souls(Megademon)
   Diablo(Act Boss)