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