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