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