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