Code

Throughout Rapture, the player will come across doors (and one safe) with 4-digit access Codes required to gain entrance. The codes are usually found nearby or shortly after the lock via audio diaries, written notes and scribbled messages. Many of the locks in BioShock can be hacked or bought out, but it is almost never required. In BioShock 2, hacking combination locks is not an option.

BioShock Door Access Codes

A Rapturian Keypad in BioShock.

Area	Code	Location	Hackable	Buyout Price	Rewards
Medical Pavilion	0451	Twilight Fields, next to a coffin.	No	Can't Buyout	EVE Hypo, Automatic Hack Tool, 00 Buck and Standard Auto Rounds.
Neptune's Bounty	5380	AD: Picked Up Timmy H.	Yes	$58	First Aid Kit and ammunition.
Neptune's Bounty	7533	AD: Masha Come Home.	Yes	$58	Money, access to the Shorten Alarms Gene Tonic after listening to the audio diary Saw Masha Today.
Arcadia	9457	Death scribbling on window.	No	Can't Buyout	A quest item, access to Farmer's Market and money.
Farmer's Market	0512	AD: Market Maintenance Code.	Yes	$251	Money, First Aid Kit, invention components and ammunition.
Fort Frolic	7774	Note on floor.	Yes	$251	Money and Electric Buck or antipersonnel Pistol Rounds.
Hephaestus	0126	AD: Kyburz Door Code; various calendars and posters with Australia Day marked.	Yes	$251	A quest item, access to a Power to the People station, invention components and ammunition.
Olympus Heights	5744	AD: Fontaine's Breakup.	No	Can't Buyout	Access to Fontaine's apartment.
Point Prometheus	1921	AD: Extra Munitions.	Yes	Can't Buyout	3 EVE Hypos, invention components and rare ammunition. (The player can enter the related room without using the code or hacking the lock.)

Challenge Rooms Door Access Codes

Area	Code	Location	Rewards
Rapture's Grand Carnival	1951	Advertisement for Zimmerman Chardonnay.	Turning the switch to activate the Ferris wheel.

BioShock 2 Door Access Codes

A more decayed keypad in BioShock 2.

Area	Code	Location	Rewards
Adonis Luxury Resort	1540	On the door of the sauna room.	Money and Drill Fuel.
Pauper's Drop	0047	On a newspaper in the Fishbowl Diner.	Door must be opened in order to progress.
Siren Alley	1919	AD: The Date is the Code.	Door must be opened in order to progress.
Dionysus Park	1080	AD: A Gift from Billy.	Access to a Power to the People station.
Fontaine Futuristics	5254	On wall by a tied corpse in the Plasmid Showroom.	Careful Hacker 2, money, bandages and ammunition.
Inner Persephone	2673	ADs: First Two Digits, Last Two Digits, wall scrawling near a toilet tank in the Holding Wing.	Door must be opened (using the code or not) in order to progress.
Inner Persephone	4146	AD: Legs, Mouths, Arms, and Eyes, Recreational therapy room wall.	First Aid Kit, EVE Hypo, money, and rare ammunition.

Minerva's Den Door Access Codes

Area	Code	Location	Rewards
Operations	2341	AD: The Books are the Code, Bookshelf in Reed Wahl's office.	Safe (containing money, Shells, and Mini-Turrets), access to the Master Input Console (to hack the beacon).

Burial at Sea Door Access Codes

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Example keypad in Burial at Sea - Episode 1

Area	Code	Location	Rewards
Market Street	2076	Near the maintenance room in The Watched Clock.	Audio diary Offer of Employment.
Fontaine's Department Store	0928	In the shoe store.	Gear, audio diary Insufficient Postage.
Housewares	3958	In the storage room in the basement of the Bistro at Fontaine's.	Radar Range, Radar Range Ammo.
At the entrance to Dr. Yi Suchong's Lab.	1216	Radio message by Yi Suchong.	Access to the Bathyspheres DeLuxe.
Fontaine's Department Store - Service Bay	7951	Audio Diary Hooligans.	Access to the controls for the lift, Radar Range, Possess Turret Mod.
Fink Manufacturing, panic room beneath Jeremiah Fink's statue.	8371	Voxophone Necessary Precautions.	Ironsides Salts Mod.
Fink Manufacturing, Handyman Operating Suite.	2847	Voxophone Childish Fears.	Ironsides Health Mod.

Behind the Scenes

• It is possible to unlock codes without listening to the audio diaries if players have past experience of this game.