Here is the full list of all 18 Choice of the Pirate achievements.
Will those mutineers get what's coming to them?
Fall under the curse of the ghost ship. Congratulations on your zombification!
Become a spy for the Crown.
Turn over your first bounty to the Crown.
Become the Pirate King.
Steer the Crown in the wrong direction.
Steal from the Pirate King! You've got guts, Captain.
Capture your first target without sinking it.
Acquire three ships to launch your fleet.
Acquire two ships to launch your fleet.
Remove the threat of Blackguard from your future.
Defeat the Lusca.
Rescue a mermaid.
Defeat the ghost ship.
Earn the notice of El Sabio.
Convince Evan Lark to open up to you.
Acquire one ship to launch your fleet.
Save Jim the Cabin Boy from an untimely death.