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