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