Here is the full list of all 53 Mystic Saga achievements.
Level reached
Energy increased to
Quests completed
Explored: Market
Locations unlocked
Explored: Smithy
Locations explored
Explored: Cabin
Locations explored in night mode
Locations explored in silhouettes mode
Failed explorations
Items bought
Chests opened
Coins spent
Crystals spent
Energizers used
Amulets used
Tools used
Rewards received
Collections completed
Energy spent
Interactions with Wolf
Interactions with Stableman
Interactions with Merchant
Interactions with Sage
Interactions with Monk
Interactions with Tiger
Interactions with ghost
Interactions with Spider
Interactions with Ice Dragon
Interactions with Woodsman
Interactions with Crane
Interactions with Sailor
Interactions with Sea Monster
Interactions with Bandit
Interactions with Dragon
Explored: Library
Explored: Temple
Explored: Huntress's Lodge
Explored: Swamp
Explored: Cavern
Explored: Snow Fortress
Explored: Underwater City
Explored: Floating Islands
Explored: Mysterious Forest
Explored: Desert
Explored: Harbor
Explored: Palace
Tea Ceremony Collection complete
Elemental Keys Collection complete
Emperor's Dragons Collection complete
Imperial Regalia Collection complete
Fish Market Collection complete