The Tavern Expansion Title update for Dungeon Defenders has 6 achievements.
You saved the moonbase from the enemy onslaught!
You saved the moonbase from the enemy onslaught... on Nightmare!
You successfully defended Buccaneer Bay!
You successfully defended Buccaneer Bay... on Nightmare!
You journeyed deep into the ocean and reclaimed the legendary Temple of Water from the horde of monsters!
You journeyed deep into the ocean and reclaimed the legendary Temple of Water from the horde of monsters... on Nightmare!