Complete all the side quests
Reach level 15
Track back 10 lost ships
Visit all the cities
Kill a legendary creature
Complete 10 delivery quests
Hunt every type of sea creature
Reach level 20
Complete "Blind secrets" quest
Have at least 5 crew members with the "Sodomite" trait on your ship
Level all the ship compartments up to their maximum
Create 5 safe docks
Hunt 100 whales
Repel a pirate boarding
Reach level 10
Take a cabin boy up to level 10
Enter a city with 3 or more sick men in your crew
Discover all the whaling areas and routes
Hunt your first whale
Kill an enemy just after he killed one of your men
Complete "Finding Rachel" quest
Amass $10.000
Navigate 21.600 nautical miles
Reach level 5
Kill Moby Dick
Sabotage another captain and make him fail a job
Win a challenge mode game of any length
Complete a 50 years long challenge mode game