The The Forgotten Add-on for Age of Empires II (2013) has 38 achievements.
You have successfully completed all of the story campaigns of Age of Empires II: The Forgotten Expansion. Through your trials and successes in these clashes of arms, you surely have mastered all spheres of empire-building and rule, and are ready to start building your own legend. “Cattle die, kindred die, every man is mortal: But the good name never dies of one who has done well.” -Havamal (Poetic Edda 1220)