Acquire all upgrades for all weapons.

The player has become a Big Daddy.

The player has broken Fontaine's mind control.

The player has completed Sander Cohen's great masterpiece.

Complete the game on the hardest difficulty setting.

Successfully complete the Lighthouse Level.

Successfully complete the Welcome to Rapture Level.

Successfully invent at least one item.

Player successfully steps into the lighthouse.

The player has defeated Atlas.

The player has defeated Peach Wilkins.

The player has defeated the crazed J.S. Steinman.

Kill your first enemy.

The player has entered Sander Cohen's personal quarters in Mercury Suites.

Find every Audio Diary.

Max out all possible research.

Fully research the Bouncer.

Fully research the Spider Splicer.

Fully research the Little Sister.

Fully research the Nitro Splicer.

Fully research the Leadhead Splicer.

Fully research the Thuggish Splicer.

Fully research the Rosie.

Fully research the Houdini Splicer.

Fully upgrade one weapon.

Take a Research Photo of the highest grade.

Successfully hack a Security Camera.

Successfully hack a safe.

Successfully hack a Turret.

Successfully hack a vending machine.

Perform at least one successful hack.

Either Harvest or Rescue every Little Sister in the game.

The player has taken a picture of Sander Cohen's corpse.

The player has defeated Andrew Ryan.

Hit the jackpot at a Slot Machine.

Purchase every slot in all four Plasmid and Tonic tracks.

Purchase every slot in one of the Plasmid or Tonic tracks.

Turn on the tap at least once

Complete the game without harvesting any Little Sisters.

Kill the door pounder

Take at least one Research Photo of a Splicer.

The player has restored the forests of Arcadia.

Shock an enemy in the water.

Purchased a Plasmid Slot or Tonic Slot any track.

Acquire at least one weapon upgrade.

Kill an electric shocked enemy with wrench.