Here is the full list of all 14 Caravanserail achievements.
Get 5000 gold
Get 2000 gold
Buy every type of goods
Survive a menace
Transform 10 units
Buy 100 times under the market price
Sell 200 units
Get 1000 gold
Sell 5 items in one sale
Get 200 gold
Double your profit on a sale
Fill your stock
Fill your stock with one type of good
Win a game