Full list of all 44 Assassin's Creed achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Achievements they've won
Achievements they've not won
Find All Flags in Damascus.
Complete Assassin's Creed.
A strange vision has appeared to you. What could it mean?
You've slain Tamir, Black Market Merchant in Damascus.
You've slain Garnier de Naplouse, Hospitalier Leader in Acre.
You've slain Talal, Slave Trader of Jerusalem.
You've slain Sibrand, the Teutonic Leader of Acre.
You've slain Jubair, the Scribe of Damascus.
You've slain Robert de Sable, but there is one more...
Complete all Reach High Points.
See 85% of all the memory glitches.
Complete every free mission in Acre.
Complete every free mission in Jerusalem.
Complete every free mission in Damascus.
Assassinate all your targets with a full DNA bar.
Last 10 minutes in open conflict.
Assassinate 100 guards.
Kill one of your main targets like a true assassin.
Defeat 25 guards in a single fight.
Perform 100 Counter Kill in Fights.
Perform 50 stealth assassinations.
Use Scholar blending 20 times.
Kill 75 guards by throwing knives.
Jump through 20 merchant stands.
You've successfully completed the Animus tutorial.
You've protected Masyaf from the Templar invasion.
You have found the traitor and have brought him before Al Mualim.
Have a complete Synchronization bar.
Find All Flags in Masyaf.
You've slain Majd Addin, Regent of Jerusalem.
Grab and Throw 25 Harassers.
Perform 50 leap of faith.
Defeat 100 opponents without dying.
You've slain William of Montferrat, Liege-Lord of Acre.
You've slain Abul Nuqoud, Merchant King of Damascus.
Kill every Templar.
Find All of Richard's Flags in the Kingdom.
Find All Flags in Jerusalem.
Go through every dialog with Lucy.
Perform 50 Combo Kills in Fights.
Pickpocket 200 throwing knives.
Find All Teutonic Flags in Acre.
Find all Templar Flags in Acre.
Find All Hospitalier Flags in Acre.