The Bile Demon is a creature type in Dungeon Keeper and Dungeon Keeper 2. They are some of the toughest creatures in a Keeper's arsenal (and the fattest).


"A very big, red, greedy creature that eats you out of house and Dungeon if you are not careful. Despite this, they are excellent fighters and as hard as nails. Also, their primary job is manufacturing. If they don’t get enough food, they will get angry and sleep until food arrives."
— Dungeon Keeper Manual

General Information (Dungeon Keeper)Edit

Bile Demons are very durable units. Their health values are some of the highest of any creature (except the Horned-reaper-icon Horned Reaper and Avatar-icon Avatar). Even at lower levels, they can tie down strong enemies for long periods of time if need be. They move with medium speed (Dragon-icon Dragons and Giant-icon Giants are slower). They are immune to all forms of gas, be it from other Bile Demons, Priestess-icon Priestesses, or even Trap Gas Small Poison Gas Traps. As they use Trap Gas Small Poison Cloud a lot during fights it is better not to let them fight together with other melee fighters that are not immune to gas. On level 4 they learn Fart icon small Fart, a spell that is only learned by Bile Demons, works like Trap Gas Small Poison Cloud at melee range and doesn't hurt allies.

Their massive weight means that they are not affected by Wind icon small Wind, therefore they are good to fight against Priestess-icon Priestesses. They won´t take damage when slapped, although it still lowers their happiness.

In terms of upkeep, Bile Demons eat more than any other creature in the game: they can eat up to six chickens per visit. This makes keeping larger numbers of Bile Demons a daunting task without a sufficiently large Hatchery Icon Small Hatchery. Not having enough food makes them angry very quick. On the other hand they have rather average wages as even a level 10 Bile Demon only demands 406 gold on payday.

Bile Demons are excellent craftsmen and seek out Workshop Icon Small Workshops by default, although they are not quite as good at manufacturing as Troll-icon Trolls. They can also research in the Library Icon Small Library, but only with very basic ability.

Bile Demons are natural enemies of Skeleton-icon Skeletons, and the two species fight if placed in the same Lair Icon Small Lair; they also refuse to group with each other in a Barracks Icon Small Barracks.

Beneficial Sacrifices
Creature Creature Creature Result
Bile-demon-icon Bile Demon Troll-icon Troll Dark-mistress-icon Mistress Horned-reaper-icon Horned Reaper
Bile-demon-icon Bile Demon Beetle-icon Beetle -- Casts ProtectMonster Icon Small Protect Monster on your creatures FX
Harmful Sacrifices
Creature Creature Creature Result
2 Bile-demon-icon Bile Demons -- -- All friendly creatures turn into Chickens

General Information (Dungeon Keeper 2)Edit

Bile Demons are huge and gluttonous creatures cursed with notoriously poor control of the most rudimentary bodily functions. Their primary use is combat, a field in which their success owes more to their hefty bulk than to any particular combat skills. However, they do also have basic construction skills so can be put to work in the Workshop.

Bile Demons, not best known for their intellect, loathe researching. They also have an ongoing antipathy towards Giants. If possible, they’ll set up their beds in the proximity of a Hatchery to avoid having to waddle too far for food.

The Bile Demon is the slowest creature you have, but is also the highest health creature you can attract. They need food, a lot, so place plenty Hatcheries around to avoid unhappiness.

They have extremely high health, 1/3 more than a Black Knight, and even more than a royal guard. They tend to outlast most creatures in a combat pit melee, even if they are 3 levels or more lower.

Trivia Edit

  • Whenever you slap a Bile Demon they will briefly display two fingers up at you in anger.
    • In some countries, namely the United Kingdom and Australia, this is often the equivalent to a middle finger in the United States. This is always done with the back of the hand towards the target.
  • In at least one Dungeon Keeper prototype, Bile Demons were not immune to Wind icon small Wind.
  • In at least one early version of Dungeon Keeper's intro, the Bile Demon's growl at the Knight-icon Knight is heard.
    Dungeon Keeper prototype intro (15 May 1997)

    Dungeon Keeper prototype intro (15 May 1997)



  1. 暴躁恶魔 地下城守护者地下城生物之魔族生物大全 (Chinese). (31 March 2012). Retrieved on 19 April 2020.
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