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