Below are the information of all in-game achievements, including tips on how to receive each one and the corresponding amount of Achievement Points.
* Roped In - 10 points
Perform 5 air assassinations from a swinging rope.
Board an enemy ship, run up, grab the glowing rope while in the middle of a jump, then keep hitting X to automatically air assassinate any enemy down below your landing area.
* Wild West Indies - 20 points
Kill 4 enemies in a row using multiple pistols.
First up, craft 3 extra holsters so Edward can hold 4 guns simultaneously. Destroy any enemy ship in naval combat, board the downed ship, let 4 enemies gang you up, then mash Y four times.
* Thug Life - 30 points
Plunder 30 ships.
Destroy, board, then plunder all loot from any 30 enemy ships to get this one.
* All Aboard! - 30 points
Board a ship without losing any crew members.
Simply defeat and board an enemy schooner, then keep shooting until you beat 5 enemies without losing any of your comrades.
* Business And Pleasure - 20 points
Earn 50,000 Reales.
This is self-explanatory. Just progress enough and beat some story missions or side missions to receive such amount. Or you can try destroying those Man o' Wars and sell expensive animal skin to get more money.
* Heroes Aren't Born - 10 points
Finish Memory Sequence 1.
Story-Driven. Go through the Main Story to get it.
* Good While It Lasted - 20 points
Finish Memory Sequence 2.
Story-Driven. Go through the Main Story to get it.
* A Pirate's Life For Me - 20 points
Finish Memory Sequence 3
Story-Driven. Go through the Main Story to get it.
* Routine Hacking - 20 points
Finish Abstergo Scene 2.
Story-Driven. Go through the Main Story to get it.
* No Apologies - 20 points
Finish Memory Sequence 4.
Story-Driven. Go through the Main Story to get it.
* Death Of A Salesman - 20 points
Finish Memory Sequence 5.
Story-Driven. Go through the Main Story to get it.
* Mixing Up The Medicines - 20 points
Finish Memory Sequence 6.
Story-Driven. Go through the Main Story to get it.
* Getting Weird Around Here - 20 points
Finish Abstergo Scene 3.
Story-Driven. Go through the Main Story to get it.
* The Hammer Falls - 20 points
Finish Memory Sequence 7.
Story-Driven. Go through the Main Story to get it.
* Adrift - 20 points
Finish Memory Sequence 8.
Story-Driven. Go through the Main Story to get it.
* A New Hope - 20 points
Finish Memory Sequence 9.
Story-Driven. Go through the Main Story to get it.
* My Elusive Fortune - 20 points
Finish Memory Sequence 10.
Story-Driven. Go through the Main Story to get it.
* Bunker Buddies - 20 points
Finish Abstergo Scene 4.
Story-Driven. Go through the Main Story to get it.
* Been Down So Long... - 20 points
Finish Memory Sequence 11.
Story-Driven. Go through the Main Story to get it.
* Just Like Starting Over - 20 points
Finish Memory Sequence 12.
Story-Driven. Go through the Main Story to get it.
* It's All Good - 20 points
Finish Abstergo Scene 4.
Story-Driven. Go through the Main Story to get it.
* Saw That One Coming... - 50 points
Finish Memory Sequence 13.
Story-Driven. Go through the Main Story to get it.
* Help A Brother Out - 20 points
Finish a Templar Hunt sequence.
Refer to the 'Templar Hunt' Guides for the various series of these hunts.
* King Of The Castle - 30 points
Capture all forts.
Refer to the 'Naval Forts' Guide for the 11 forts included in the game.
* Sea Legs - 30 points
Finish all Naval Contracts.
Refer to the 'Naval Contracts' Guide for further details on these side missions.
* Vault Raider - 30 points
Unlock the secret door in Tulum.
Refer to the 'Mayan Stelae' Guide for further details on these side missions.
* Seven Deadly Seas - 10 points
Explore all Shipwrecks.
Refer to the 'Shipwrecks' Guide for further details.
* Barfly - 30 points
Unlock all Taverns.
Refer to the 'Taverns' Guide for further details.
* Excavator - 10 points
Find a buried treasure.
Refer to the 'Treasures' Guide for further details.
* FTFY - 10 points
Complete all Cove Upgrades.
Refer to the 'Cove Upgrades' Guide for further details.
* Ghost In The Machine - 10 points
Hack 15 computers in Abstergo Entertainment.
Refer to the 'Abstergo Hacks' Guide for further details.
* Silence, Fool! - 5 points
Kill a guard ringing a bell.
Once spotted in a plantation, wait and make the guard run to the alarm bell. While he is ringing the bell, kill him.
* Cannon Fodder - 5 points
Recruit 500 crew members.
Simply recuit enough crew members by hiring them Taverns, helping stranded sailors at sea or saving pirates from enemy guards.
* Mer-man - 10 points
Swim a total of 1 nautical mile (nmi).
Just swim enough at sea without riding your ship to unlock this achievement.
* Siren Song - 20 points
Save pirate hostages by distracting enemies using hired "dancers."
Hire some dancers in any town, approach a group of captive pirates, distract the guards using the dancers, then sneak in and free the hostages while the enemies are still distracted.
* Redingote Up! - 10 points
Craft the Hunter outfit.
Kill and skin a Red Howler Monkey at Isla Providencia, as well as a White Jaguar at Great Inagua, then craft the outfit at the game menu.
* Hungover - 10 points
Wake up in a haystack.
Head to the Nassau tavern, drink the bottle of rum at the far right end of the bar. Keep doing this until you get drunk and wake up at a haystack.
* Cartographer - 20 points
Visit every location of the game.
Check the map, look for any undiscovered location, travel to every area to unlock it and make the whole map explored. There are 70 explorable locations so make sure you go by each to unlock this achievement. It is best advised to try this after clearing the main storyline first.
* By The Book - 50 points
Finish 100% of main mission constraints.
Refer to the Main Story Missions Guide for the optional missions that you have to accomplish to unlock this achievement.
* Destroyer - 40 points
Fully upgrade the Jackdaw.
You have to find all Elite Plans from Shipwrecks and Buried Treasures to unlock all the final upgrades, then just upgrade all Jackdaw areas to maximum to achieve this. Refer to the 'Shipwrecks' and 'Buried Treasures' Guides for more details.
* Owned - 10 points
Finish every activity in a single location.
Press the RB to pull up a checklist of activities not yet completed at that location. These include collectibles, viewpoints and all the various side missions plus the contracts.
* Employee Of The Month - 30 points
Finish 25 Abstergo Challenges.
Refer to the 'Abstergo Challenges' Guide for the complete list of available challenges.
* Committed To The Cause - 20 points
Reach level 55 in Multiplayer.
Self-explanatory. Play through Online Multiplayer Mode to unlock.
* All Rounder - 20 points
Play on every online game mode, and use every ability & ranged weapon once in Multiplayer.
Self-explanatory. Play through Online Multiplayer Mode to unlock.
* Personal Bag Of Tricks - 10 points
Complete a game session with an ability set that you have customized in Multiplayer Mode. Self-explanatory. Play through Online Multiplayer Mode to unlock.
* Lab Technician - 10 points
Play and complete a game session of Game Lab in the Multiplayer Public playlist.
Self-explanatory. Play through Online Multiplayer Mode to unlock.
* Master Of The Caribbean - 20 points
Finish the Discovery Mode of Wolfpack in Multiplayer.
Self-explanatory. Play through Online Multiplayer Mode to unlock.
* Killer Killer - 10 points
Harpoon a killer whale.
Upgrade your harpoon damage and capacity first, then head to the area near Cabo de Cruz fort to find and skin a killer whale at sea.
* Sharing Is Caring - 10 points
Share each discovery type with friends at least once.
Check your map, then look for the area where you can locate a Social treasure chest, White Whale, or Royal Fleet, then discover that particular item.