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