Full list of all 12 Pixel Piracy achievements worth 1,000 gamerscore. It takes around 6-8 hours to unlock all of the achievements on Xbox One.
Kill a total of 1000 enemies
Have 5 of your crewmates wear diapers at the same time
Defeat all the Legendary pirate ships
Loot a total of 10000 gold
sail 50 times
Have 10 or more pirates on your crew
Defeat a legendary pirate
Pick a fight with a legendary pirate
Add a sail to your ship
Have at least 5 poop on your ship
Dig up 10 buried treasure chests
Have both Rodrigo de la Pedraja and David Welch on your ship