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