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