For the location of the locks and their required codes, see Code.

Number Locks are one of the more heavily guarded locks, as they were used to get into areas not meant for the general public. When the player comes across one, it is locked and needs a code to open it. The codes can usually be found in audio diaries or written somewhere in Rapture. Most codes are given before encountering a safe, but some are given as far ahead as four levels into the game from where the lock was first encountered. Once opened, these locks provide access to rooms and areas with various loot or hidden items.


Main article: BioShock

In BioShock, the player has the option of hacking or buying out the number lock, which negates the need to find the code.

Recommended TonicsEdit

BioShock 2Edit

Main article: BioShock 2

In BioShock 2, the player can no longer hack or buy out number locks. Each one must be opened with the proper code. However, this is made easier because the game will automatically remember and show the code as a note during the key lock sequence if the player has previously seen it in the environment or heard it in an audio diary.

BioShock InfiniteEdit

Main article: BioShock Infinite
Combination Lock Bioshock Infinite

Only one number lock is present in BioShock Infinite in the Grand Central Depot.

It is needed to progress in the story and can only be interacted with by finding the combination nearby.

Burial at SeaEdit

Main article: Burial at Sea
BioShock Infinite - Burial at Sea - Episode 1 - Market Street - Code Lock-cut f0803

Number locks make a comeback in Burial at Sea, the downloadable content for BioShock Infinite. Two number locks can even be found in Columbia.