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