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Red Key

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Red Key
Red Key Icon.png
Item Type
Activated Collectible
Item ID
1027
Pickup Quote
Explore the other side
Recharge Time
3
Item Pool
Secret Room
Curse Room
Unlock Method
Red Key Defeat The Witness as Cain.

Red Key is an unlockable active item.

Effects[edit | edit source]

Notes[edit | edit source]

  • You cannot use the item unless you are close to an outline.
  • In rooms with multiple outlines, it only opens the closest one.
  • A red room can be created through another red room.
  • The red rooms have a physical presence on the floor unlike Devil Rooms or I AM ERROR rooms, and can be re-entered at any time.
  • Red rooms follow secret room rules, meaning that all other rooms it connects to must have clear space for a door to the red room.
    • As a result, all red rooms are symmetrical, and if there's enough empty space you create a large area of red rooms.
  • Although a red room can be adjacent to more than one room, if the room type is one that requires something like a key, each entrance to the room will have its own lock.
  • You cannot build a red room outside the boundary of the map. Trying to do so will open a door which leads to the I AM ERROR room instead, which you cannot return from.
    • You can tell if a red door will lead to an I AM ERROR room if it does not show up on the map.
    • The max boundary size of a map is 13x13 rooms.
  • The max number of rooms in a single floor is 128, counting all the rooms of the original map (including Secret Room and Super Secret Room, also double and quadruple-sized rooms count as one) plus the rooms created. After the count of 128 rooms the Red Key will not open new doors and the charge is wasted.
  • Red rooms can be special rooms even in The Womb / Utero / Corpse, Sheol, Cathedral, Dark Room and The Chest, where these types of rooms otherwise would not be generated.
  • Red rooms cannot be opened using Dad's Key.

In-game Footage[edit | edit source]

Seeds[edit | edit source]

2ZX3 XKBQ - First floor curse room

8EMD 1ASP - First floor curse room

T26E CR6B - First floor curse room, right next to spawn

Gallery[edit | edit source]

Trivia[edit | edit source]

  • This item may be a reference to SCP-860, a blue key which, when used on any door, will lead to a misty forest road.
  • This item may be a reference to red rooms. Red rooms are an internet urban legend originating from the Deep Web, allegedly being hidden websites or services where viewers may pay money to torture or kill innocent victims.
  • This item may be a reference to the item of the same name in the RPGMaker Game LISA: The First, in which it is used to acess a red basement.

Bugs[edit | edit source]

Bug Bug! After quitting and re-entering the game, using Red Key will cause a no-room-config error until the next floor is reached.
Bug Bug! Using Red Key out of certain special rooms will crash the game.
Bug Bug! Created rooms may interfere with the operation of the room-teleporters in Mausoleum, causing the teleporter to lead to the wrong room.
Bug Bug! Creating a room where the entrance to Mega Satan is makes Mega Satan inaccessible.
Bug Bug! Going through a red I AM ERROR room in Sheol will crash the game. Re-entering the run will disable the use of Red Key until the floor is left.
Bug Bug! Using an I AM ERROR room created from the key on the last floor of the Corpse will send the player to a bugged version of the Sheol where the last boss will be Monstro and no Golden Chest will spawn after his death