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.
Complete Markos's questline.
Complete the Hippokrates questline.
Complete 20 Quests on Pephka, Obsidian and Abantis islands.
Defeat Medusa.
Unveil all sub-regions of Greece.
Become Champion of the Arena.
Reach Level 50.
Upgrade the Adrestia to Legendary Status.
Defeat all the Cultists of Kosmos.
Complete Episode 9 + Epilogue.
Upgrade your Spear to Tier 6.
Complete Episode 8.
Complete Episode 7.
Become the first Mercenary.
Complete the Olympic questline.
Outwit the Sphinx.
Discover Atlantis and speak with Pythagoras.
Complete Episode 6.
Complete the Daughters of Artemis questline.
Complete Xenia's questline.
Complete Episode 5.
Defeat the Minotaur.
Acquire a Tier 3 active Ability.
Defeat the Cyclops.
Equip a Legendary Armor set.
Defeat a full cluster of Cultists of Kosmos.
Complete Episode 4.
Defeat a Mercenary in the Arena.
Fully crew the Adrestia with Legendary Lieutenants.
Engrave a Legendary Item with a Legendary Effect.
Equip 1 Legendary melee weapon and 5 Legendary armor pieces.
Complete 20 Bounties, War Contracts, or Naval Quests from Message Boards.
Sink your first Epic Ship.
Perform an Overpower Attack with every weapon type.
Complete Episode 3.
Recover the Cyclops's eye from a goat on Kephallonia.
Win your first on land conquest battle in any region (excluding Megaris in Hero's Journey).
Kill the Leader of any Region with Low Resources, other than Megaris.
Raise your Bounty to the maximum level.
Cleave a ship while having an all-women crew.
Acquire and equip your first Legendary item.
Complete Episode 2.
Spend the night with another character.
Engrave your first item.
Upgrade the Adrestia for the first time.
Recruit and assign a Legendary NPC for your ship.
Cleave a ship in half.
Complete Episode 1.
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
Discover the truth about Darius's past.
Kill all of the Ancients in the Order of the Hunters in Makedonia.
Land a Rush Assassinate that chains 4 times with the Pride of the Lion.
Kill the Makedonian lion.
Kill 10 enemies using the Death Veil ability.
Heal by parrying 10 times with the Judgment of the Lion.
Kill all of the Ancients in the Order of the Storm in Achaia.
Set 10 enemy ships on fire.
Continue the bloodline.
Kill 10 enemies using the Rapid Fire ability.
Acquire the Sword of Kings
Kill all the Ancients in the Order of Dominion in Messenia
Heal by getting 10 headshot kills while you have the Golden Harbinger equipped.
Secure your bloodline
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.
Collect all the Keeper's Insights in Episode 1.
Destroy all of the Marble Maiden Tributes.
Kill all Overseers in Elysium.
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.
Kill 10 Isu Soldiers with the Blessing of Kronos enhancement.
Forge the 3 Legendary Weapons.
Collect all the Keeper's Insights in Episode 3.
Completely fill the Knowledge Sequence.