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