Full list of all 60 Assassin's Creed IV: Black Flag achievements worth 1,250 gamerscore.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 10 achievements worth 250 Gamerscore.
Defeat all 4 legendary ships.
Complete all naval contracts.
Fully upgrade the Jackdaw.
Recruit 500 crew members.
Plunder 30 ships.
Fully upgrade your hideout.
Capture all forts.
Visit every location of the game.
Unlock the secret door in Tulum.
Unlock all taverns.
Complete 100% of all main mission constraints.
Explore all underwater shipwrecks.
Share each type of discovery with friends once.
Complete memory sequence 13.
Complete present day mission 5.
Complete memory sequence 12.
Harpoon a killer whale.
Complete memory sequence 11.
Complete present day mission 4.
Complete memory sequence 10.
Complete memory sequence 9.
Complete memory sequence 8.
Perform 5 air assassinations from a swinging rope.
Complete memory sequence 7.
Hack 15 computers in Abstergo Entertainment.
Complete present day mission 3.
Complete memory sequence 6.
Complete memory sequence 5.
Swim a total of 1 nmi.
Kill 4 enemies in a row using multi-pistols.
Complete memory sequence 4.
Craft the Hunter outfit.
Complete a Templar Hunt sequence.
Rescue pirate hostages by distracting enemies with "dancers."
Play on every game mode, and use every ability and ranged weapon once in Multiplayer.
Play and complete a game session of Game Lab in the Multiplayer Public playlist.
Complete present day mission 2.
Complete memory sequence 3.
Complete 25 Abstergo challenges.
Board a ship without losing any crew members.
Wake up in a haystack.
Complete every activity in a single location.
Complete memory sequence 2.
Find a buried treasure.
Reach level 55 in Multiplayer.
Earn 50,000 reales.
Kill a guard ringing a bell.
Complete the Discovery Mode of Wolfpack in Multiplayer.
Finish a game session with an ability set that you customized in Multiplayer.
Complete memory sequence 1.
Playing as The Jaguar, be the highest scoring player of a Domination game session.
Kill a player using a lift that has been trapped with Booby Trap.
Playing as The Orchid, block 10 abilities from opponents with Sabotage.
Playing as Blackbeard, perform an acrobatic kill and a pistol kill in less than 10 seconds.
Freedom Cry - Achieved 100% synchronization.
Freedom Cry - Completed all missions
Gave the Gouverneur a taste of his own medicine.
Liberated 500 slaves.
Killed 5 guards at once with a blunderbuss.
Freed your first slave.