Achievements
From BioShock Wiki
Here is a list of all the Xbox Achievements for BioShock, how much gamerscore they give you, and what you must do to "achieve" them:
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Achievements
[1] Names marked in yellow are listed as "Secret" in the guide until you unlock them, most have to do with the storyline.
Ammo Inventor
25 
Successfully invented all possible ammo types.
Avid Inventor
10
Successfully invent at least 100 items.
Basic Inventor
5
Successfully invent at least one item.
Became a Big Daddy
30
The player has become a Big Daddy.
Bought One Slot
5
Purchase one slot in any Plasmid or Tonic track.
Broke Fontaine's Mind Control
30
The player has broken Fontaine's mind control.
Completed Cohen's Masterpiece
30
The player has completed Sander Cohen's great masterpiece.
Completed Welcome
10
Successfully complete the Welcome to Rapture Level.
Dealt with every Little Sister
40
Either Harvest or Rescue every Little Sister in the game.
Defeated Andrew Ryan
30
The player has defeated Andrew Ryan.
Defeated Atlas
100
The player has defeated Atlas.
Defeated Dr. Steinman
15
The player has defeated the crazed Dr. Steinman.
Defeated Peach Wilkins
15
The player has defeated Peach Wilkins.
Five Fully Upgraded Weapons
10
Fully upgrade five weapons.
Found Cohen's Room
10
The player has entered Sander Cohen's personal quarters in Mercury Suites
Four Fully Upgraded Weapons
10
Fully upgrade four weapons.
Fully Researched Bouncer
10
Fully research the Bouncer.
Fully Researched Leadhead Splicer
10
Fully research the Leadhead Splicer.
Fully Researched Houdini Splicer
10
Fully research the Houdini Splicer.
Fully Researched Little Sister
10
Fully research the Little Sister.
Fully Researched Nitro Splicer
10
Fully research the Nitro Splicer.
Fully Researched Rosie
10
Fully research the Rosie.
Fully Researched Spider Splicer
10
Fully research the Spider Splicer.
Fully Researched Thuggish Splicer
10
Fully research the Thuggish Splicer.
Hacked a Safe
10
Successfully hack a safe.
Hacked a Security Bot
10
Successfully hack a Security Bot.
Hacked a Security Camera
Successfully hack a Security Camera.
Hacked a Turret
10
Successfully hack a Turret.
Hacked a Vending Machine
10
Successfully hack a vending machine.
Historian
50
Find every audio diary.
Irony
10
The player has taken a picture of Sander Cohen's corpse.
Little Sister Savior
100
Complete the game without harvesting any Little Sisters.
Lucky Winner
10
Hit the jackpot at a slot machine.
Maxed All Tracks
20
Purchased every slot in all four Plasmid and Tonic tracks.
Maxed One Track
20
Purchased every slot in one of the Plasmid or Tonic tracks.
One Fully Upgraded Weapon
5
Fully upgrade one weapon.
One Successful Hack
5
Perform at least one successful hack.
Prolific Photographer
5
Take at least one photo in every research group.
Quality Research Photo
20
Take a Research Photo of the highest grade.
Research PhD
20
Max out all possible research.
Researched a Splicer
5
Take at least one Research Photo of a Splicer.
Restored the Forest
15
The player has restored the forests of Arcadia.
Seriously Good At This
40
Complete the game on the hardest difficulty setting.
Skilled Hacker
40
Successfully complete 50 hacks.
Three Fully Upgraded Weapons
10
Fully upgrade three weapons.
Toaster in the Tub
10
Shock an enemy in the water.
Tonic Collector
50
Collect or Invent 53 Tonics in the Physical, Engineering and Combat tracks.
Two Fully Upgraded Weapons
5
Fully upgrade two weapons.
Upgraded a Weapon
5
Acquire at least one weapon upgrade.
Weapon Specialist
20
Acquire all upgrades for all weapons.
Post 1.1 [Downloadable content]
Brass Balls
100
The player has beaten the game on the hardest difficulty setting without using a Vita-Chamber.
Note:After installing new DLC, there is a new option to disable Vita-Chambers to prevent accidental revive
