Defeated 3 Big Daddies without dying during the fight.

Maxed out one Research Track.

Defeated the Preacher.

Spent 2000 dollars at Vending Machines.

Bought one Plasmid or Tonic Slot at a Gatherer's Garden.

Installed the third upgrade to a weapon.

Adopted a new Little Sister for the first time.

Defended yourself against Lamb's assault in the train station.

Found your way back into the ruins of Rapture.

Kill 666 Demons

Played in a co-op game with either an employee of Gearbox or someone who had this trophy

Collect the Scythe

Free Samael from his prison