The Dragonborn Add-on for The Elder Scrolls V: Skyrim has 10 achievements.
Complete "At the Summit of Apocrypha"
Discover 30 locations on the island of Solstheim
Arrive on Solstheim
Complete "The Temple of Miraak"
Complete "The Path of Knowledge"
Learn all 3 words of Dragon Aspect
Learn the secrets of 5 Black Books
Craft an item out of Stalhrim
Tame and ride 5 dragons
Own a house in Raven Rock