Full list of all 41 Monster Sanctuary achievements.
The base game contains 34 achievements, and there is 1 DLC pack containing 7 achievements.
Complete twenty five battles in the Infinity Arena OR PvP
Uncover the whole map
Obtain all monsters
Receive 5 star scores against all Champions
Become a Keeper Master
Donate 100 Monsters to the Monster Army
Defeat Marduk
Complete Underworld story content
Deal over 10,000 damage in a single hit
Receive a 5 star score in the Champion Challenge
Beat all of Trainer Gotthelm's challenges
Complete Forgotten Workshop story content
Win 200 wild enounters
Enter the Land of Blobs
Recover long lost treasure
Achieve at least a 25 x Combo
Defeat the Goblin King
Upgrade 50 pieces of gear
Evolve a monster
Prove a worthy opponent
Obtain a shifted monster
Restore balance to the Sun Palace
Become A Keeper Lancer
Pass the Oracle's test
Receive a Tanuki Egg
Confront the Alchemists in the Library
Receive a reward from the Monster Army
Calm the Blue Caves
Defeat all monsters in a single turn
Help out a resident of the Sanctuary
Complete Old Buran's training
Five-star a battle
Discover a hidden room entrance
Hatch first monster