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