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