Here is the full list of all 31 Shoppe Keep achievements.
Sold 10,000 items
Wow, well, wow.
Ordered 10,000 items
Harvested 200 Mushrooms
Slain your first batch of barbarians
Barbarian sword dropped
Your shop hold on for a whole month
Slain Barbingantua
Sold 500 Potions
Cleaned up 100 corpses
Earn 100,000 Gold Profit
50 Thieves dealt with
Your shop hold on for a whole week
Sold 200 items
Earn 10,000 Gold Profit
Ordered 200 items
Sold 50 items
Earn 1000 Gold profit
Ordered 50 items
Slain your first thief
Have a free axe
1000 Thieves dealt with
Welcome aboard
Slain 100 Barbarians
Slain 500 Barbarians
Shoppe Keep Developer
You helped make Shoppe Keep a reality
Your shop hold on for a whole year
Ordered 20,000 items
Sold 20,000 items