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