You unlocked the special ability of buying guns from Little Jacob.

You completed the mission "I'll Take Her".

You completed the mission "Museum Piece".

You unlocked all the islands.

You beat a friend at pool.

You completed the mission "Roman's Sorrow".

You scored 180 with 3 darts.

You were invited into your girlfriend's house.

You have completed the first mission.

Stun 4 guards at once by throwing sand in their face.

Sweep 5 guards at once by using a Long Weapon.

Wear the Auditore cape in each city.

Escape the hideout.