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