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