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