Ordinary floor curse
Curse of Darkness
Darkens the floor and makes hazards harder to read.
Current floor
Effect and removal rulesIsaac hub / Gameplay reference
Repentance curses
Floor curses
A hidden map, concealed health, or a question-mark item changes the decisions you can make. Recognize the icon and check what still works.
Six ordinary floor curses
Darkness, Labyrinth, Lost, Unknown, Maze and Blind can affect ordinary floors. Their effects usually end when you leave that floor.
One special challenge effect
Cursed changes doors in a forced challenge or seed setup. Its damage rules differ from an ordinary Curse Room.
Health still matters
Hidden hearts are still spent by damage and health payments. Keep track before using a Blood Donation Machine or taking a deal.
Curse recognition
Match the icon to the effect.
7 of 7 entries
Ordinary floor curse
Curse of the Labyrinth
Combines a chapter into one larger XL floor.
Current floor
Effect and removal rules
Ordinary floor curse
Curse of the Lost
Hides the map and makes navigation harder.
Current floor
Effect and removal rules
Ordinary floor curse
Curse of the Unknown
Hides your health display while health still works normally.
Current floor
Effect and removal rules
Special challenge effect
Curse of the Cursed
Turns ordinary doors into damaging spiked doors.
Forced setup
Effect and removal rules
Ordinary floor curse
Curse of the Maze
Sometimes sends you to a different room when you move between rooms.
Current floor
Effect and removal rules
Ordinary floor curse
Curse of the Blind
Conceals collectible pedestal identities until you take them.
Current floor
Effect and removal rulesWhich tool removes a curse?
These are ordinary-floor rules. Forced challenges and special seeds can impose their own effects.
| Tool | Current floor | Later floors |
|---|---|---|
| Black Candle | Removes curses except Labyrinth | Prevents ordinary curses |
| Dagaz | Removes curses except Labyrinth; adds a Soul Heart | No ongoing immunity |
| Night Light | Removes Darkness when picked up | Softens Darkness visually; does not remove it |
Labyrinth is the important exception. The XL floor has already been generated, so Black Candle and Dagaz cannot split it back into two floors.
Unlock Black Candle at 150 Shop-bank coinsWhy is Curse of the Giant in the datamine?
A definition and icon exist in the game files, but this curse is not naturally obtainable and its room-merging behavior is incomplete. It is excluded from the ordinary curse list.
Unused curse referenceRepentance rules, reviewed October 6, 2026. Repentance+ and mods can differ. Detailed sources are linked in each entry.