Here is the full list of all 10 The Shopkeeper achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
The Customer has been decisively ignored.
Listened to all the descriptions of items in the Shop.
Listened to all the short descriptions of items in the Shop.
Begin the story for the 10th time...
Listened to all the Florist had to say.
The uncaring Ending.
The close-but-still-not-correct Ending.
The annoyed Ending.
You got to see the Shopkeepers bedroom.
Listened to short and long description about The Rug