Gilded Key

Gilded Key is an unlockable trinket added in The Binding of Isaac: Repentance.

Effects[]

Replaces all new chests with Golden Chests.
Modifies the contents of Golden Chests to be able to give cards and trinkets from a single chest alongside normal pickups.
- Also allows Golden Chests to drop pills.
Gives Isaac one Key when picked up for the first time.

Old Chests and Mega Chests cannot be overwritten by Golden Chests.
The contents of Golden Chests can be changed retroactively by picking up/dropping Gilded Key. This can even be observed if Isaac has Guppy's Eye, allowing him to see what the chest would have if he did(n't) have the key and choose which payout he wants.
- This also applies to chests that use Golden Chests' loot systems, such as Bomb Chests and Eternal Chests.
- Mega Chests will also have their contents modified if they didn't contain items.
- The difference in contents between the two chest payouts are independent from each other; regardless of if the original chest had an item, card, trinket, or pickups, the modified chest can have any combination of them.
  - Modified chests are still unable to spawn pickups alongside items.
Gilded Key does not retroactively change chests that have already spawned into Golden Chests, or change their contents.
Golden Chests in Chest will still spawn items.
The unique Red Chests in the beginning room of the Dark Room will be replaced.

Gilded Key is the only trinket in the game to grant a consumable upon pickup.
The pickup text "Less is more" is a reference to Mom's Key's old pickup text "less is now more +2 keys"