Here is the full list of all 28 The Sinking City trophies - there are 14 bronze, 7 silver, 6 gold and 1 platinum.
End the Cycle.
Leave the city and the world to their fate.
Restart the Cycle.
Prevent the last self-immolation.
Kill the archeologist.
Have a ritual conducted on you.
Study all the frescoes in the Temple of Dagon.
Ask the Imperial Wizard to show you a magic trick.
Punish the upstart.
Help the professor with his plan.
Uphold your agreement with Robert.
Take Sidney's stash. You monster.
Go below the surface for the first time.
Agree to the experimental treatment.
Use the intelligence archives in your investigation.
Give an interview to the local newspaper.
Solve your first case in Oakmont.
Have your fortune read.
Complete every challenge the city of Oakmont has to offer.
Satisfy curiosity.
Betray the warehouse guard's trust.
Challenge the horror of the Redemption Church.
Dethrone the patriarch.
Kill the old lady.
Finally commit the crime you were accused of.
Kill the priestess.
Defeat a little girl without playing fair.
Humor a grieving mother.