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