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