Here is the full list of all 31 Cross of the Dutchman achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Loot all chests
Found all POI's
Upgrade all your skills to the maximum level
Have 1000 gold in your inventory
Killed 3 times. It is better getting killed, than being a slave.
Complete Chapter 9
Complete Chapter 8
Loot 250 barrels and crates
Complete Chapter 7
Complete Chapter 6
Upgrade your HP to the maximum
Kill the first group of soldiers with your sword
Complete Chapter 5
Get your sword
Slay 250 enemies
Visit Arum for the first time
Complete Chapter 4
Kill 5 lieutenants
Loot 10 chests
Destroy 50 barrels or crates
Complete Chapter 3
Kill a general
Slay 50 enemies
Slay 10 enemies within 1 minute
Knock down 25 enemies with your fists
Slay 4 enemies with one blow
Complete Chapter 2
Retrieve the fish from the soldiers
Complete Chapter 1
Get your savings
Bring down your first enemies by fists