Secret Achievement

10
Continue playing to unlock this secret achievement.
Secret Achievement

5
Continue playing to unlock this secret achievement.
Secret Achievement

20
Continue playing to unlock this secret achievement.
Upgraded a Weapon

10
Upgrade any weapon at a Power to the People Station.
Secret Achievement

20
Continue playing to unlock this secret achievement.
Secret Achievement

5
Continue playing to unlock this secret achievement.
Prolific Hacker

20
Successfully hack at least one of every type of machine.
First Research

5
Research a Splicer with the Research Camera.
Secret Achievement

10
Continue playing to unlock this secret achievement.
Bought a Slot

5
Buy one Plasmid or Tonic Slot at a Gatherer's Garden.
Secret Achievement

20
Continue playing to unlock this secret achievement.
Secret Achievement

20
Continue playing to unlock this secret achievement.
Fully Upgraded a Weapon

10
Install the third and final upgrade to any of your weapons.
Big Spender

15
Spend 2000 dollars at Vending Machines.
Fully Upgraded a Plasmid

10
Fully upgrade one of your Plasmids to the level 3 version at a Gatherer's Garden.
Secret Achievement

20
Continue playing to unlock this secret achievement.
Secret Achievement

20
Continue playing to unlock this secret achievement.
Secret Achievement

50
Continue playing to unlock this secret achievement.
Secret Achievement

25
Continue playing to unlock this secret achievement.
Max Plasmid Slots

10
Fully upgrade to the maximum number of Plasmid Slots.
Master Hacker

20
Hack 30 machines at a distance with the Hack Tool.
Secret Achievement

100
Continue playing to unlock this secret achievement.
Master Gatherer

30
Gather 600 ADAM with Little Sisters.
Secret Achievement

15
Continue playing to unlock this secret achievement.
Trap Master

15
Kill 30 enemies using only Traps.
Dealt with Every Little Sister

50
Either Harvest or Save every Little Sister in the game.
Grand Daddy

25
Defeat 3 Big Daddies without dying during the fight.
Unnatural Selection

10
Score your first kill in a non-private match.
One Research Track

20
Max out one Research Track.
Welcome to Rapture

10
Complete your first non-private match.
Proving Grounds

20
Win your first non-private match.
Secret Achievement

5
Continue playing to unlock this secret achievement.
All Plasmids

20
Find or purchase all 11 basic Plasmid types.
Rapture Historian

40
Find 100 audio diaries.
Master Protector

15
Get through a Gather with no damage and no one getting to the Little Sister.
"Mr. Bubbles-- No!"

20
Take down your first Big Daddy in a non-private match.
Disgusting Frankenstein

10
Become a Big Daddy for the first time in a non-private match.
Two-Bit Heroics

10
Complete your first trial in a non-private match.
Secret Achievement

25
Continue playing to unlock this secret achievement.
Secret Achievement

5
Continue playing to unlock this secret achievement.
Big Brass Balls

25
Finish the game without using Vita-Chambers.
All Weapon Upgrades

20
Find all 14 Power to the People weapon upgrades in the game.
Research Master

20
Max out research on all 9 research subjects.
Parasite

10
Achieve Rank 10.
Against All Odds

30
Finish the game on the hardest difficulty level.
Mother Goose

20
Save your first Little Sister in a non-private match.
Man About Town

10
Play at least one non-private match on each multiplayer map.
Little Moth

20
Achieve Rank 20.
Skin Job

20
Achieve Rank 30.
Choose the Impossible

50
Achieve Rank 40.
Reincarnation

100
Use Rebirth to start again!
Aqua Incognita

25
Play at least one non-private match on each downloadable content map.
Territorial

25
Win a non-private match in each of the 6 new maps.
Litmus Test

5
Earn 6 stars in the Protector Trials
Perfect Protector

20
Collect 100% of the ADAM in a single Protector Trial
Acid Test
Earn 18 stars in the Protector Trial
Trial By Fire
Earn 36 stars in the Protector Trials
Enemy of the Family
Earn an A rank in all Protector Trials
Secret Achievement
Continue playing to unlock this secret achievement.
Get a Bigger Bucket
Collect 50% of the ADAM available in all Protector Trials
Secret Achievement
Continue playing to unlock this secret achievement.
Secret Achievement
Continue playing to unlock this secret achievement.
Secret Achievement
Continue playing to unlock this secret achievement.
Secret Achievement
Continue playing to unlock this secret achievement.
Garbage Collection
Destroy all 10 Vacuum Bots in Minerva's Den
Secret Achievement
Continue playing to unlock this secret achievement.
Lancer Killer
Kill a Lancer Big Daddy
ADAM Addict
Resolve all the Little Sisters in Minerva's Den