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