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