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