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