Here is the full list of all 12 The Bottom of the Well achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Against all odds get Ches and his sister safely to the Evacuation Center.
Reach the Evacuation Center alive, but fail to enter the Admin Building.
Survive the apocalypse by sheltering in the subway.
Let someone else take your place.
Finish your first playthrough.
Learn valuable life lessons and get better prepared for the End Times.
Reach the Evacuation Center and follow the music to its source.
Finish the game and finally wake Alice from her sleep.
Defeat the Bitch Queen and her lackeys and gain control over the Fallout Shelter.
Find an alternate way across the river - and survive.
Use a car to get out of downtown.
Explore the many ways you can die during the post-apocalypse.