Here is the full list of all 50 Age of Mythology: Retold achievements worth 1,000 gamerscore.
Defeat 10000 units in battle.
Destroy 2000 buildings in battle.
Complete a Wonder.
Complete a Titan gate.
Toss 500 units into the air.
Train 10000 Villagers.
Reach the Villager build limit in a match.
Build 50 Fortress-like buildings.
Unleash a Greek, an Egyptian, a Norse, and an Atlantean Titan.
Defeat 100 AI opponents.
Play a multiplayer match.
Use 4 God Powers within 30 seconds.
Win a match without building a Farm.
Win a match without training any military units aside from Heroes and Myth Units.
Defeat 50 enemy units with Villagers.
Win a match without building an additional Village Center or Town Center.
Win a match as Greeks without training Ranged Soldiers or Cavalry.
Win a match as Norse without training Infantry, except Hersirs.
Fully fatten 10 livestock animals in a single match.
Destroy 3 Town Centers with Infantry.
Defeat 50 units with Militia.
Empower 15 buildings simultaneously.
Deal 2000 damage with Set Animals in a single match.
Reach the Villager build limit training only Dwarves.
Time shift 200 buildings.
Toss a unit twice within 4 seconds with Minotaurs.
Defeat 100 units with Centaurs.
Defeat 50 Villagers with Anubites.
Heal 4000 HP with Valkyries.
Heal 10000 HP using Caladrias.
Defeat 100 Villagers with Fenris Wolf Broods.
Absorb 5000 damage with Behemoths.
Cast the Einheri's 'Horn Blast' ability 20 times in one game session.
Use the Mountain Giant's 'Punt' ability.
Create over 666 Argus eyes in a single match.
Regenerate 5000 hit points using the 'Colossus Colossal Hunger' ability.
Complete the Tutorial mission.
Complete the first mission of the Fall of the Trident campaign.
Complete the Greek portion of the Fall of the Trident campaign.
Complete the Egyptian portion of the Fall of the Trident campaign.
Complete the Norse portion of the Fall of the Trident campaign.
Complete the Fall of the Trident campaign.
Complete the first mission of the Golden Gift Campaign.
Complete the Golden Gift campaign.
Complete the first mission of the New Atlantis campaign.
Complete the New Atlantis campaign.
In Fall of the Trident 7. "More Bandits," win by only training Centaurs, no other units!
Invoke the Bolt God Power on the Manticore in the Tutorial Mission.
In Fall of the Trident mission 1. "Omens," train an additional 10 Hoplites and 10 Toxotai.
In Fall of the Trident 2. "Consequences," find the Shipwreck to help boost your economy.