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