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Room Tiers

Once Room Tiers are introduced, every room except the start rolls a tier from Common to Prismatic. Higher tiers carry more boons and more drawbacks, and they only apply while you're inside. The minimap outlines each room in its tier colour, and the pause menu lists the current room's traits. Opposite traits never share a room.

On this page7
  1. Common Room
  2. Uncommon Room
  3. Rare Room
  4. Epic Room
  5. Legendary Room
  6. Mythic Room
  7. Prismatic Room

A plain room with no traits.

  • 45% of rooms in the Nasal Passage, falling to about 20% in the Brain
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

1 boon, no drawbacks.

  • About 25% of rooms in every organ
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

Rare Room

Tier 3

1 boon and 1 drawback.

  • 15% of rooms in the Nasal Passage, about 24% in the Brain
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

Epic Room

Tier 4

2 boons and 1 drawback.

  • 9% of rooms in the Nasal Passage, about 16% in the Brain
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

2 boons and 2 drawbacks.

  • 4% of rooms in the Nasal Passage, about 9% in the Brain
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

3 boons and 2 drawbacks.

  • 1.5% of rooms in the Nasal Passage, 4% in the Brain
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

3 boons and 3 drawbacks, outlined in cycling rainbow colours.

  • 0.5% of rooms in the Nasal Passage, about 1.7% in the Brain
From the Codex

Every room rolls a tier, from common to prismatic, with boons and drawbacks.

Fun fact: Check a room's border colour on the minimap before you walk in.

Room Tiers in the Codex

See also