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