The Lords of the West Add-on for Age of Empires II: Definitive Edition has 16 achievements worth 200 gamerscore.
Complete the Edward Longshanks campaign.
Complete the Grand Dukes of the West campaign.
Complete the Hautevilles campaign.
Defeat Simon the Younger's army before the baronial forces attack in "Vain Ambition".
Steal the Stone of Scone in the fourth Edward Longshanks mission "Toom Tabard".
Kill William Wallace before Robert the Bruce betrays you in "Hammer of the Scots".
Do not construct a single siege weapon in the mission "A Kingdom Divided".
Wipe out Humphrey's base before defeating Jacqueline in "The Hook and Cod Wars".
Defeat the French army before capturing Joan of Arc in the mission "The Maid Falls".
Win without allying with Argyrus or Guaimar in the mission "Guiscard Arrives".
Inspire a rebellion in the second Hautevilles mission "Roger in Sicily".
Do not lose a hero in the fourth Hautevilles mission "Bohemond in the East".
Win a game playing as the Burgundians.
Win a game playing as the Sicilians.
Transform 50 Villagers by researching Flemish Revolution.
Construct a Donjon and use it to train a Serjeant.