Keys

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Pickups
This article is about the pickup. For other uses, see Key (Disambiguation).

Keys are used to gain entry to many of the game's rooms, as well as open Locked Chest.pngLocked Chests and Key Blocks.

Key ID Image Worth Additional Info Unlock Method Probability
Key 5.30.1 Key.png 1 Humbleing BundleHumbleing Bundle and (except in Rebirth and Afterbirth) Equality!Equality! can replace this with a Key Ring. 96.08%
Golden Key 5.30.2 Golden Key.png 0 Will not add to the player's key count, but when picked up, it will allow the player to use keys on anything that requires them without subtracting from their total for the duration of the current floor, even if the current number of keys is 0.
(in Repentance and Repentance+) Sharp KeySharp Key and (except in Repentance+) Key Master.pngKey Masters ignore the Golden Key and still subtract keys from the key count. (in Repentance+) Key Master.pngKey Masters now consume the Golden Key, and will pay out instantly with Paper ClipPaper Clip or an item from the Key Master item poolKey Master item pool if the Paper Clip has been encountered previously in the run. 		1.97%
Key Ring 5.30.3 Key Ring.png 2 (except in Repentance and Repentance+) Doesn't spawn naturally. Can only be found by using certain items or encountering certain rooms. 0.00%
(except in Rebirth and Afterbirth) Charged Key 5.30.4 Charged Key.gif 1 Acts as a Lil' Battery.pngLil' Battery when picked up.
(except in Repentance and Repentance+) Key BumKey Bum will pick this up, but will not give Isaac any active charge.
(in Repentance and Repentance+) Key Bum will drop a Lil' Battery.pngLil' Battery when picking the key up. 		Charged Key Complete Pokey Mans (challenge #33) 1.96%

Notes

  • The probabilities in the table refer to the kind of key that is generated by the game when a key is spawned with a sub-type of 0 (i.e. a random key).

Gallery

  • Rebirth concepts, including the Key Ring.
    Rebirth concepts, including the Key Ring.
  • Unused pre-release sprite for the Key Ring found among the Room Editor files.
    Unused pre-release sprite for the Key Ring found among the Room Editor files.

Trivia

  • (except in Rebirth and Afterbirth) Booster Pack #5 added an electrical graphical effect to Charged Keys.
    • (in Repentance and Repentance+) Charged Keys start sparkling as soon as they spawn, helping players distinguish them from normal keys and prevent wasting charges.
  • Charged Keys may be based off of the story of Benjamin Franklin discovering electricity via tying a key to a kite during a lighting storm, thus drawing an electrical charge from it.
  • Golden Keys having a skull on them is a reference to skeleton keys, a master key that is used to unlock multiple doors.

Bugs

Bug Bug! (in Afterbirth †) Charged Keys do not increment Key BumKey Bum's key count when picked up.


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