Full list of all 93 Assassin's Creed Odyssey achievements worth 1,850 gamerscore.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 19 DLC packs containing 43 achievements worth 850 Gamerscore.
Complete all underwater location objectives.
Upgrade the Adrestia to Legendary Status.
Complete 20 Bounties, War Contracts, or Naval Quests from Message Boards.
Become the first Mercenary.
Defeat all the Cultists of Kosmos.
Complete Episode 9 + Epilogue.
Defeat Medusa.
Upgrade your Spear to Tier 6.
Reach Level 50.
Unveil all sub-regions of Greece.
Complete Episode 8.
Become Champion of the Arena.
Complete the Daughters of Artemis questline.
Complete Episode 7.
Complete Xenia's questline.
Complete the Hippokrates questline.
Complete the Olympic questline.
Defeat the Cyclops.
Outwit the Sphinx.
Fully crew the Adrestia with Legendary Lieutenants.
Defeat the Minotaur.
Perform an Overpower Attack with every weapon type.
Equip a Legendary Armor set.
Discover Atlantis and speak with Pythagoras.
Complete Episode 6.
Defeat a Mercenary in the Arena.
Complete 20 Quests on Pephka, Obsidian and Abantis islands.
Acquire a Tier 3 active Ability.
Complete Markos's questline.
Complete Episode 5.
Defeat a full cluster of Cultists of Kosmos.
Kill the Leader of any Region with Low Resources, other than Megaris.
Equip 1 Legendary melee weapon and 5 Legendary armor pieces.
Complete Episode 4.
Recruit and assign a Legendary NPC for your ship.
Win your first on land conquest battle in any region (excluding Megaris in Hero's Journey).
Engrave a Legendary Item with a Legendary Effect.
Raise your Bounty to the maximum level.
Complete Episode 3.
Sink your first Epic Ship.
Complete Episode 2.
Spend the night with another character.
Acquire and equip your first Legendary item.
Upgrade the Adrestia for the first time.
Cleave a ship in half.
Cleave a ship while having an all-women crew.
Complete Episode 1.
Recover the Cyclops's eye from a goat on Kephallonia.
Engrave your first item.
Complete the Battle of 300.
Complete The Show Must Go On.
Complete Divine Intervention.
Complete The Image of Faith.
Complete The Daughters of Lalaia.
Complete A Poet's Legacy.
Complete A Brother's Seduction
Complete A Friend Worth Dying For
Complete The Heir of Memories
Complete One Really, Really Bad Day
Complete Every Story Has an Ending
Complete Old Flames Burn Brighter
Defeat Steropes the Lightning Bringer.
Defeat Arges the Bright One
Kill all of the Ancients in the Order of the Hunters in Makedonia.
Discover the truth about Darius's past.
Kill the Makedonian lion.
Land a Rush Assassinate that chains 4 times with the Pride of the Lion.
Kill 10 enemies using the Death Veil ability.
Kill all of the Ancients in the Order of the Storm in Achaia.
Continue the bloodline.
Set 10 enemy ships on fire.
Heal by parrying 10 times with the Judgment of the Lion.
Kill 10 enemies using the Rapid Fire ability.
Acquire the Sword of Kings
Kill all the Ancients in the Order of Dominion in Messenia
Secure your bloodline
Heal by getting 10 headshot kills while you have the Golden Harbinger equipped.
Kill 10 enemies using the Fury of the Bloodline Ability.
Win the conquest of Elysium with freed humans from the 3 main regions.
Remember who you are.
Destroy all of the Marble Maiden Tributes.
Kill all Overseers in Elysium.
Collect all the Keeper's Insights in Episode 1.
Dethrone the king.
Defeat all of the Fallen.
Close all Tartaros Rifts.
Collect all the Keeper's Insights in Episode 2.
Defeat Cerberos.
Defeat the Hekatonchires.
Completely fill the Knowledge Sequence.
Forge the 3 Legendary Weapons.
Kill 10 Isu Soldiers with the Blessing of Kronos enhancement.
Collect all the Keeper's Insights in Episode 3.