Keys

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 Chests and Key Blocks.

Key	ID	Worth	Additional Info	Unlock Method	Probability
Key	5.30.1	1	Humbleing Bundle and Equality! can replace this with a Key Ring.		96.08%
Golden Key	5.30.2	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. Sharp Key and Key Masters ignore the Golden Key and still subtract keys from the key count.		1.97%
Key Ring	5.30.3	2	Doesn't spawn naturally. Can only be found by using certain items or encountering certain rooms.		0.00%
Charged Key	5.30.4	1	Acts as a Lil' Battery when picked up. Key Bum will pick this up, but will not give Isaac any active charge. Key Bum will drop a Lil' Battery when picking the key up.	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).

Booster Pack #5 added an electrical graphical effect to Charged Keys.
- 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.

Bug!	Charged Keys do not increment Key Bum's key count when picked up.