Full list of all 12 Dungeon Defenders achievements worth 200 gamerscore. It takes around 80-100 hours to unlock all of the achievements on Xbox 360.
Store 15,000,000 Mana in your Mana Bank
Store all Pet types in your Item Box or on your Heroes
Reach Hero Level 70
Complete all levels on any difficulty setting
Complete all levels on Hard
Complete all levels on Insane
Complete All Challenges on INSANE Difficulty
Reach Survival Wave 15 on Medium Difficulty
Reach Wave 10 on all levels in Pure Strategy on at least Medium Difficulty
Earn the Flawless Victory Award on all Missions on at least Medium Difficulty
Complete all levels with 4 active players on at least Medium Difficulty
Earn every Dungeon Defenders Accomplishment