Here is the full list of all 20 Merchants of the Caribbean achievements.
Find all hidden objects
Develop plantations, forests or deposits 300 times
Collect all chests in all island expeditions
Win all naval battles
Earn 80 000 coins in the game
Win naval battles up to level 6
Earn 30 000 coins in the game
Earn 1 000 coins in the game
Start the adventure
Win a naval battle
Complete all the levels of Chapter 1 with 3 stars
Complete all the levels of Chapter 2 with 3 stars
Complete all the levels of Chapter 3 with 3 stars
Complete all the levels of Chapter 4 with 3 stars
Complete all the Collector's Edition levels with 3 stars
Start processing raw materials into materials 200 times
Start production of goods 100 times
Earn 10 000 coins in the game
Earn 150 000 coins in the game
Master of the Seas Complete all naval battles with a score of at least 80%