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