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