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.
Every Templar has fallen to your hand.
You've slain Garnier de Naplouse, Hospitalier Leader in Acre.
You've slain Talal, Slave Trader of Jerusalem.
You've slain Jubair, the Scribe of Damascus.
You remain undefeated for over 100 battles.
Survival at its best, for over 10 minutes, nothing was able to hinder your flight.
Over 100 city guards have fallen to your hunt.
Like a Blade in the Crowd, your target never knew his death laid wait within his very shadow.
Over 100 people have witnessed your deadly performance with a blade.
Over 50 people have felt the deadly sting of your blade.
Scholars know you well and have helped you over 20 times.
You've made a friend within the walls of Abstergo Industries.
Nothing can hinder the descent of an Eagle. Over 50 people have fallen to your relentless attacks.
A strange vision has appeared to you. What could it mean?
Completed Assassin's Creed.
You've witnessed Altair's Memorable Moments in all their splendor.
You've slain Robert de Sable, but there is one more...
You've fully honored the tenets of the Creed. You are a Master Assassin.
You've collected every Jerusalem Flag.
You've collected every Damascus Flag.
You've collected every Templar Flag in Acre.
You've collected every Teutonic Flag in Acre.
You've collected every Hospitalier Flag in Acre.
You've collected every Flag in the Kingdom belonging to Richard.
You were bold enough to challenge 25 soldiers in a single fight... and win.
The people of Jerusalem will be forever grateful for what you've done.
You've discovered every Reach High Point.
You've slain Sibrand, the Teutonic Leader of Acre.
The people of Acre will be forever grateful for what you've done.
The people of Damascus will be forever grateful for what you've done.
Desmond and Altair have been completely synchronized.
You've slain Abul Nuqoud, Merchant King of Damascus.
You've slain William of Montferrat, Liege-Lord of Acre.
You've slain Majd Addin, Regent of Jerusalem.
You've soared with the eagles and landed safely over 50 times.
You managed to scare away 25 beggars. I hope you're proud of yourself.
You've gathered quite a supply of throwing knives.
Over 75 guards were felled by your knives.
You've collected every Masyaf Flag.
You've slain Tamir, Black Market Merchant in Damascus.
The Merchants of the land now know you VERY well.
You have found the traitor and have brought him before Al Mualim.
You've protected Masyaf from the Templar invasion.
You've successfully completed the Animus tutorial.