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