Full list of all 64 Assassin's Creed III achievements worth 1,350 gamerscore. It takes around 40-50 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 4 DLC packs containing 14 achievements worth 350 Gamerscore.
Complete 100% of all main mission constraints.
Complete ALL progress tracker grid entries.
Unlock a hacked version of one of the Abstergo videos in the story quest.
Uncover the mystery of Oak Island.
Complete all challenges for any of the Clubs.
Loot a convoy without killing any of its guards.
Complete the Encyclopedia of the Common Man.
Craft one of Franklin's inventions to decorate your Manor.
Win a game of Fanorona, Morris and Bowls on the Homestead.
Exchange undamaged pelts at all different general stores.
Send a convoy to Boston, New York and the Frontier.
See all the optional characters settled at the Homestead.
Hang 5 enemies by using rope darts.
Have a Trainee reach the Assassin Rank.
Find all pivots and sync the Animus to the Cloud.
Witness a predator killing an enemy.
Complete each of the epilogue missions unlocked after the credits roll.
Open the Temple Door and learn Desmond's fate.
Complete Sequence 12.
Complete Sequence 11.
Perform a double assassination using a musket.
Complete Present - Abstergo.
Complete Sequence 10.
Kill 15 guards with a single cannon shot.
Complete all 12 Privateer Contracts.
Explore Fort Wolcott.
Complete all Naval Missions aboard the Aquila.
After becoming fully Notorious, kill 10 Jagers before losing your notoriety.
Complete 50% of the Progress Tracker entries.
Complete Sequence 9.
Upgrade the Aquila.
Reach level 20 in the multiplayer mode.
Customize your multiplayer Profile and Character.
Be on the winning team at the end of a multiplayer game session.
Liberate all districts in Boston OR New York.
Retrieve every page for one of Ben Franklin's Almanacs.
Reach sequence 10 in a map on Wolfpack multiplayer mode.
Complete Present - Stadium.
Complete Sequence 8.
Complete Sequence 7.
Complete Sequence 6.
Complete Present - Skyscraper.
Complete Sequence 5.
Recruit any of the Artisans and see them settled on the Homestead.
Block a firing line 5 times by using a human shield.
Be invited to join a Club.
Complete Sequence 4.
Complete Sequence 3.
Complete Sequence 1 & 2.
Re-Enter the Animus.
With any of the additional characters, perform 20 ‘Revive’ actions.
Stun 3 pursuers without dying, playing with any of the additional characters.
Finish a multiplayer game session with each of the additional characters.
Complete a Wolfpack multiplayer session on any of the additional maps.
Reach 100% synchronization in the Frontier.
Defeat Benedict Arnold.
Kill 25 enemies while staying cloaked.
Receive an unexpected gift.
Reach 100% synchronization in Boston.
Defeat Putnam.
Use Eagle Flight to travel 1 km.
Reach 100% synchronization in New York.
Defeat George Washington.
Kill 125 enemies using Bear Might.