Full list of all 67 Assassin's Creed Origins achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 53 achievements, and there are 2 DLC packs containing 14 achievements.
Win the first Hippodrome tournament.
Kill 30 enemies by shooting a fire arrow at oil jars.
Sell 100 trinkets at once.
Witness raining bugs in the desert.
Complete all tours in the Daily Life category
Complete tours with at least 5 different characters
Complete one tour
Kill 10 enemies in a row without being detected.
Kill a poisoned level 35+ enemy with the torch in less than 30 seconds.
Use Dawn & Dusk to make time speed forward 30 times.
Complete all locations.
Complete all hermit locations.
Bring a tamed lion to a crocodile.
Take 1 photo in 5 different territories.
Complete all arena events in the Krokodilopolis Arena.
Complete Side Quest "Seven Farmers".
Complete all 12 Stone Circles.
Defeat 8 Ship Captains.
Complete 15 underwater locations.
Defeat the war elephants Qetesh & Resheph.
Headshot kill an enemy with the bow while in the air.
Destroy an opponent in a Hippodrome race.
Solve a papyrus mystery.
Tame a lion.
Use the eagle for a total of 30 minutes.
Finish an arena boss with an Overpower Attack.
Activate a Master ability.
Craft 20 items.
Defog the whole map.
Reach the "Top of the World" in the Black Desert territory.
Be equipped with only Legendary equipment.
Kill 3 enemies with one hit.
Kill an enemy with the predator bow from more than 60 meters while controlling the arrow.
Swim for 1500m, ride for 40km and run for 10km.
Defeat a Phylakes.
Complete the last Main Quest.
Complete Main Quest "The Final Weighing".
Complete Main Quest "The Aftermath".
Complete Main Quest "The Crocodile's Jaws".
Destroy 100 breakable objects.
Complete Main Quest "The Lizard's Face".
Reach level 20.
Complete Main Quest Dream Sequence.
Feed a predator with a corpse.
Complete Main Quest "The Hyena".
Complete a tomb.
Run away from 3 fights with a hippo.
Complete Main Quest "Pompeius Magnus".
Complete Main Quest "The Scarab's Lies".
Complete Main Quest "Aya".
Use all types of vehicle at least once.
Complete Side Quest "Lady of Slaughter".
Complete the Prologue.
Perform a leap of faith from Arsinoe's sundial obelisk between 10 am and noon (The Hidden Ones)
Perform 3 Assassinations from a zipline (The Hidden Ones)
Kill an enemy with a headshot while they are being harassed by Senu (The Hidden Ones)
Complete Side DLC Quests "Rise of Shaqilat" and "Shadows of the Scarab" (The Hidden Ones)
Complete Main DLC Quest "The Greater Good" (The Hidden Ones)
Assasinate Tacito, Ptahmose and Ampelius (The Hidden Ones)
Free 20 Rebels (The Hidden Ones)
Complete the Walls-of-the-Ruler citadel (The Hidden Ones)
Acquire Eternal Maw for use outside the Afterlifes (The Curse of the Pharaohs)
Complete the 5 Serqet locations (The Curse of the Pharaohs)
Reach level 55 (The Curse of the Pharaohs)
Kill a Mummy by setting it on fire (The Curse of the Pharaohs)
Craft an upgrade using Shards of a Star (The Curse of the Pharaohs)