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