Here is the full list of all 31 Pixel Piracy achievements.
What was that? Did we just travel to hell?
Capture 50 animals
Dig up 10 buried treasure chests
Unearth an epic buried treasure
Visit a panda island
Find a stranded hobo
Have both Vitali Kirpu and Alexander Poysky on your ship
Defeat all the Legendary pirate ships
Loot a total of 10000 gold
Defeat a legendary pirate
Pick a fight with a legendary pirate
Kill a total of 1000 enemies
Have 5 of your crewmates wear diapers at the same time
Die for the first time
Accept a bounty quest
Add a pirate flag to your ship
Have a pirate turn hostile due to low morale
One of your pirates dies while using Kaboom
Have 10 or more pirates on your crew
Capture an animal to be your pet
Kill a hobo
Check out the Main Menu credits
Visit an island with no town
Horke the Flatulent poops
Visit a tavern
Find a treasure chest and open it
Have a seagull poop on your ship
Capture an enemy ship
Plunder an enemy ship
Set sail for the first time
Have at least 5 poop on your ship