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