Here is the full list of all 149 Assassin's Creed The Ezio Collection achievements worth 3,000 gamerscore.
Break the loop, escape the cycle (The Lost Archive).
Experience the loop (The Lost Archive).
Find all of the decipher fragments (The Lost Archive).
Make it across the river Styx without failing (The Lost Archive).
Finish memory five (The Lost Archive).
Complete the Animus testing sequence without failing (The Lost Archive).
Enter the Animus simulation (The Lost Archive).
Reach the Animus memo (The Lost Archive).
Take the induction leap of faith (The Lost Archive).
Land on a block after falling more than 25 meters (The Lost Archive).
Achieve 100% Synchronization in all Sequences.
Complete Desmond Sequence 5.
Complete DNA Sequence 9.
Complete DNA Sequence 8.
Complete Desmond Sequence 4.
Complete Desmond Sequence 3.
Complete Desmond Sequence 2.
Complete Desmond Sequence 1.
Kill 5 guards while under the cover of a smoke screen bomb.
Collect all Animus data fragments.
Kill 5 guards in 5 seconds using only your hidden blades.
Kill 5 guards with a scaffold after they have been stunned by caltrops.
Loot 50 dead guards with thief looting.
Have a guard incapacitate 3 civilians while he's poisoned.
Have 10 guards poisoned at the same time.
Collect all available books.
Complete DNA Sequence 7.
Complete DNA Sequence 6.
Climb Hagia Sofia, from the ground to the pinnacle, in under 25 seconds.
Complete the Hagia Sofia challenge level.
Complete DNA Sequence 5.
Collect all of Ishak Pasha's memoir pages.
Parachute directly from the top of the Galata Tower to the Golden Horn.
Parachute onto a zipline.
Craft 30 bombs.
Complete all Bomb Missions.
Kill three guards simultaneously with only throwing knives.
Complete all Faction Creed Challenges from a single faction.
Have seven trainees reach the rank of Master Assassin.
Find and beat up Duccio.
Complete DNA Sequence 4.
Complete DNA Sequence 3.
Have one trainee reach the rank of Master Assassin.
Control all cities (except Rhodes) simultaneously in the Mediterranean Defense game.
Assassinate 50 guards with the hidden blade.
Get your money back from a Templar tax collector.
Complete DNA Sequence 2.
Perform a perfect Den Defense without using the cannon.
Complete DNA Sequence 1.
Receive 100% synch in ACB and full synch in all missions of The Da Vinci Disappearance.
Complete The Da Vinci Disappearance.
Solve all of Subject 16's Puzzles.
Kill 10 guards with a single arrow storm.
Secure the Apple of Eden.
Win 10,000 florins playing Hazard.
Remove All Borgia Flags in Rome.
Discover the Shrine in the Basilica di San Pietro.
Jump with the parachute off the top of Castel Sant'Angelo.
Beat up the 5 thirsty harlequins.
Double Assassinate from a parachute.
Discover the Shrine in the Cloaca Maxima.
Discover the Shrine in Palazzo Laterano.
Burn All Borgia Towers.
Collect All Feathers.
Throw a Long Weapon, Heavy Weapon, and Smoke bomb more than 10 m at a guard.
Train a recruit up to the Rank of Assassin.
Complete 10 Guild Challenges.
Win the highest bet at the Fights.
Discover the Shrine in Il Colosseo.
Destroy the Naval Cannon.
Destroy the Tank.
Discover the Shrine in the Catacombe di Roma.
Destroy the Bomber.
Destroy the Machine Gun.
Recruit 3 Assassins.
Renovate 5 buildings in the Antico district.
Pay 500 florins to an orator, then pickpocket him afterward.
Throw money in a well.
Achieve 100% Synchronization in any Sequence other than Sequence 1.
Replay a Memory.
Kill a guard with a broom.
Kill a guard with the bag that drops from a lift.
Find 1 Artifact in 2012.
Access your email in 2012.
Discover the Shrine in the Terme di Traiano.
Steal 5 horses from their riders, while remaining on horseback.
Earn 3 gold medals in the Animus Virtual Training Program.
Perform an Execution Streak of 10 kills.
Find a secure place to hide and re-enter the Animus.
Attempt to access DNA Sequence 9 for the first time.
Escape the hideout.
Complete DNA Sequence 14.
Complete DNA Sequence 11.
Wear the Auditore cape in each city.
Collect all the Feathers.
Complete DNA Sequence 10.
Unlock all 20 pieces of Subject 16's video.
Get all Hidden Blades, Item Pouches and Armor upgrades for Ezio.
Discover the Assassin's Tomb inside Santa Maria della Visitazione.
Kick a guard while using the Flying Machine.
Discover the Assassin's Tomb inside the Basilica di San Marco.
Sweep 5 guards at once by using a Long Weapon.
Kill 10 enemies while remaining in conflict without being hit.
Buy a Painting from Florence and Venice.
Reach 80% of your stronghold's total value.
Complete training and reenter the Animus.
Discover the Assassin's Tomb inside the Rocca di Ravaldino fortress.
Spend 5000 florins on Courtesans.
Tint your clothes with those colors: Wetland Ebony and Wetland Ivory.
Toss more than 300 florins on the ground.
Hide 5 dead bodies in a Bale of Hay.
Perform an Air Assassination on a Poisoned NPC.
Discover the Assassin's Tomb inside the Torre Grossa.
Discover the Assassin's Tomb inside Santa Maria del Fiore (The Duomo).
Complete your first assassination mission for Lorenzo Il Magnifico.
Stun 4 guards at once by throwing sand in their face.
Discover the Assassin's Tomb inside the catacombs under Santa Maria Novella.
Pickpocket 1000 Florins.
Defend a woman's honor.
Win a race against thieves.
Intercept a Borgia Courrier.
Upgrade a building in the Stronghold.
Find the 8 statuettes in Monteriggioni.
Synchronize 10 View Points.
Unlock a piece of Subject 16's video.
Use your Eagle Vision to scan a Glyph in the environment.
Sprint for 100 meters.
Perform a Leap of Faith from the Top of Florence's Giotto's Campanile.
Enter the Animus 2.0.
Break out of Abstergo.
Be reborn as Ezio Auditore da Firenze.