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