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