The My Pet Dungeon Add-on for War for the Overworld has 24 achievements.
Complete Deepwater (My Pet Dungeon level)
Complete the Deepwater bonus objectives (My Pet Dungeon)
Score 100,000 points on Deepwater (My Pet Dungeon level)
Complete Justice (My Pet Dungeon level)
Complete the Justice bonus objectives (My Pet Dungeon)
Score 150,000 points on Justice (My Pet Dungeon level)
Complete Frostfossil (My Pet Dungeon level)
Complete the Frostfossil bonus objectives (My Pet Dungeon)
Score 150,000 points on Frostfossil (My Pet Dungeon level)
Complete Goldrust (My Pet Dungeon level)
Complete the Goldrust bonus objectives (My Pet Dungeon)
Score 150,000 points on Goldrust (My Pet Dungeon level)
Complete Snowhope (My Pet Dungeon level)
Complete the Snowhope bonus objectives (My Pet Dungeon)
Score 150,000 points on Snowhope (My Pet Dungeon level)
Complete Ponygrasp (My Pet Dungeon level)
Complete the Ponygrasp bonus objectives (My Pet Dungeon)
Score 150,000 points on Ponygrasp (My Pet Dungeon level)
Complete Lockshackle (My Pet Dungeon level)
Complete the Lockshackle bonus objectives (My Pet Dungeon)
Score 150,000 points on Lockshackle (My Pet Dungeon level)
Complete Hell's Deep (My Pet Dungeon level)
Complete the Hell's Deep bonus objectives (My Pet Dungeon)
Score 150,000 points on Hell's Deep (My Pet Dungeon level)