Full list of all 29 The Sinking City achievements worth 1,000 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
Achievements they've won
Achievements they've not won
Complete every challenge the city of Oakmont has to offer.
Betray the warehouse guard's trust.
End the Cycle.
Restart the Cycle.
Leave the city and the world to their fate.
Prevent the last self-immolation.
Defeat a little girl without playing fair.
Kill the priestess.
Kill the archeologist.
Finally commit the crime you were accused of.
Kill the old lady.
Have a ritual conducted on you.
Banish Granny Weaver.
Study all the frescoes in the Temple of Dagon.
Ask the Imperial Wizard to show you a magic trick.
Dethrone the patriarch.
Punish the upstart.
Challenge the horror of the Redemption Church.
Uphold your agreement with Robert.
Humor a grieving mother.
Help the professor with his plan.
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.