Here is the full list of all 38 Thymesia achievements.
Unlock all achievements.
Empty the first health bar of Varg in the tutorial.
Reach the "Chaotic Power" ending.
Reach all endings.
Reach the "Harmonized Force" ending.
Break 1000 barrels.
Reach the "Power of Cleasing" ending.
Reach the "Blessing of Pure Blood" ending.
Collect all entries in the collection.
Collect all story bits.
Collect all lore.
Craft all potion recipes.
Finish all levels.
Unlock all plague weapons.
Defeat Urd.
Reach the "Power of Vile Blood" ending.
Defeat Corvus.
Finish "Hermes Fortress" level.
Defeat Varg.
Defeat Sound of the Abyss.
Craft a potion recipe for the first time
Collect all potion ingredients.
Finish "Royal Garden" level.
Defeat The Hanged Queen.
Reach max level.
Fully upgrade a potion.
Defeat any boss without using potion.
Defeat Mutated Odur.
Fully upgrade a plague weapon for the first time.
Defeat God of the Fools.
Finish "Sea of Trees" level.
Defeat Odur.
Dead for the first time.
Unlock a plague weapon for the first time.
Start recalling for the first time.
Finish the tutorial.
Rest at the beacon for the first time.
Reave a plague weapon for the first time.