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