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