Full list of all 44 Age of Empires: Definitive Edition achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Train 400 Assyrian Chariot Archers
Destroy 200 temples
Create 1000 Choson Legions
Train 256 Macedonian Hoplites
Train 500 Horse Archers
Killed a Medusa
Complete the First Punic War campaign
Defeated 20 heroes
Build 500 heavy catapults
Complete the Enemies of Rome campaign
Complete the Imperium Romana campaign
Hunt 250 animals
Won a game by holding ruins
Won a ranked Elo game.
Convert 1000 units
Build 500 houses
Build 50 Babylonian Towers
Train 100 Minoan Composite Bowman
Collected 50,000 stone
Won a game by holding all the artifacts
Win a random map game without training any cavalry
Train 21 Centurions
Complete the Ave Caesar campaign
Build 789 Shang wall segments
Won a game by building and holding a wonder
Advanced first to every age
Train 400 Axemen
Explore all areas of a single map
Train 100 Egyptian Scythe Chariots
Complete the Rise of Rome campaign
Complete the Reign of the Hittites campaign
Collected 50,000 gold
Collected 50,000 wood
Convert an enemy Priest
Defeat 1000 enemy units
Convert 20 units with Egyptian Priests
Complete the Yamato Empire of the Rising Sun campaign
Defeat a Lion (Alpha)
Complete the Voices of Babylon campaign
Collected 50,000 food
Complete the Glory of Greece campaign
Researched every technology available in a single game
Complete the Ascent of Egypt learning campaign
Win a random map without training any archery units