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