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