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