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