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