Here is the full list of all 54 Dragon's Dogma 2 achievements.
Helped the gigantus walk again.
Petrified a medusa.
Acquired a preserved medusa head.
Acquired every maister's teaching.
Boarded the phantom oxcart.
Discovered 50 dungeons.
Reclaimed your items from the scavenger who stole them from you.
Accomplished a miracle for several people all at once.
Found a solution to every conundrum posed by the goddess of riddles.
Collected 80 Seeker's Tokens.
Grilled every type of meat during the night and day.
Crossed a cyclopean bridge.
Obtained Dragon's Dogma.
Earned the affections of 50 people.
Experienced the end of the cycle.
Led the people to safety in the unmoored world.
Overcame all the trials of the unmoored world.
Witnessed the unmoored world.
Changed your vocation to magick archer.
Changed your vocation to warfarer.
Strengthened a weapon in wyrmfire.
Acquired a pawn badge.
Witnessed a brawl break out in your dwelling among your admirers.
Raised a person's affinity to the maximum.
Defeated the headless horseman.
Decapitated a medusa.
Used illicit means to pass through the gate at the border.
Taught your pawn a specialization.
Became Sovran of Vernworth.
Reached the maximum rank in a vocation.
Soaked in the hot spring.
Defeated the gigantus in a short span of time.
Summoned a harpy, grabbed hold, and took flight.
Returned to Agamen Volcanic Island.
Reached Drabnir's Grotto.
Changed your vocation to mystic spearhand.
Set a pawn quest.
Reached Dragonsbreath Tower.
Revived two pawns simultaneously.
Purchased a dwelling of your own.
Changed your vocation to trickster.
Passed through the gate at the border.
Attended a palace masquerade in formal raiment.
Used a Wakestone to restore the dead to life.
Restored the dead to life at a morgue or charnel house.
Boarded an oxcart.
Used a Ferrystone.
Changed your vocation.
Entered the rose chateau.
Went camping.
Took flight on griffin wing a second time.
Arrived in Vernworth.
Regained your memories of receiving the Arisen's charge.
Escaped the bonds of slavery.