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