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