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This room is the home for high level demons, including the Balrog and Arch Fiend.

Tile Cost: 5000 Gold
Per Tile Bonus (Level 2+): +1% Demons Maximum Happiness

Level Upgrade Requirements Upgrade Time Benefits Accumulated Benefits
Level 1

Spellcasting Chamber 4

Portal 5

N/A none none
Level 2

10 000 Gold

10 Feldspar,


3 Mana Spark

1 hour Experience Production Rate: 12, Tile Bonus Experience Production Rate: 12, Tile Bonus
Level 3

100 000 Gold

60 Feldspar


10 Abyssal Mantle


15 Mana Spark

24 hours Experience Production Rate: 20, Tile Bonus Experience Production Rate: 32, Tile Bonus
Level 4

300 000 Gold

200 Feldspar


30 Abyssal Mantle


40 Mana Spark

48 hours Experience Production Rate: 32, Tile Bonus Experience Production Rate: 64, Tile Bonus
Level 5

600 000 Gold

500 Feldspar


60 Abyssal Mantle


80 Mana Spark

72 hours
  • +25% Deamons Attack
  • +25% Deamons Defense
  • +100% Experience Production Rate

+50% Demons Defense

+50% Demons Accuracy


Experience Production Rate: 105, Tile Bonus

Benefits of increasing level replace the previous level and stack with the bonus from tiles.

FurnitureEdit

Sacrificial Tomb

Sacrificial Chamber

Sacrificial Altar

Underworld Remnant

Underworld Fragment

Underworld Relic

Burning Lair

Cult Object

Talisman

Phylactery

Underworld Throne

Pit of Despair

Requirements Edit

Research: Rift to the Underworld
Room: Portal Level 5, Spellcasting Chamber Level 4