Full list of all 14 Estranged: Act II achievements. It takes around 1-2 hours to unlock all of the achievements in the base game on Windows.
The base game contains 5 achievements, and there are 5 DLC packs containing 9 achievements.
Take John's bucket to the end of the game.
Let the ducks swim in the Fisherman's bath.
Dispense all Arque Water bottles.
Get 5 headshots with a firearm weapon.
Remove a tripping hazard by creating a slipping hazard.
Kill two infected with headshots using a single bullet.
Shoot an innocent bird from the sky. (Why would you want this?)
Flush 10 items in the Fisherman's cabin.
Tidy the coffee cups from the refreshments table in the Arque teaching room.