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