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