Here is the full list of all 44 WARRIORS OROCHI 3 Ultimate Definitive Edition achievements.
Cleared Gauntlet Mode for the first time.
Cleared 5 straight stages in Gauntlet Mode.
Used the Craft command for the first time.
Completed a request for the first time in Gauntlet Mode.
Summoned an ally for the first time in Gauntlet Mode.
Cleared a stage for the first time in Gauntlet Mode.
Used a True Musou Burst.
Defeated an Otherworld Invader in Gauntlet Mode.
Unlocked Momiji, Kasumi, Sterkenburg and Sophitia as playable characters.
Obtained a Mystic Weapon for the first time.
Used a Strategy Card for the first time in Duel Mode.
Played a match against the CPU for the first time in Duel Mode.
Changed your character's battle style.
Used an aerial Special Attack.
Obtained a Scroll of Enlightenment.
Accomplished all of the Achievements in the game.
Obtained all of the Strategy Cards in the game.
Performed all of the special Triple Rush attacks.
Obtained all of the Mystic Weapons.
Made it through 50 Survival battles in Duel Mode.
Used the Craft command 100 times.
Unlocked all of the playable characters within Gauntlet Mode.
Completed all of the requests within Gauntlet Mode.
Cleared all of the stages within Gauntlet Mode.
Found Kyūbi's nine tails and defeated them.
Cleared the stage "Showdown at Odawara Castle" in Story Mode.
Cleared the stage "Revenge of the Fox" in Story Mode.
Cleared the stage "Escape from the Mystic Realm" in Story Mode.
Defeated 10,000 enemies.
Maxed out Bonds with one of these officers: Momiji, Kasumi, Sterkenburg or Sophitia.
Cleared the stage "War against the Serpent King" in Story Mode.
Cleared the stage "Battle of Itsukushima" in Story Mode.
Cleared the stage "The Imprisonment of Tamamo" in Story Mode.
Cleared the stage "Rescue of the Mystics" in Story Mode.
Cleared a battlefield in Musou Battlefields for the first time.
Promoted a single officer a total of 3 times.
Performed a Formation Attack in Gauntlet Mode.
Changed the color of an officer's costume.
Played a match with another player for the first time in Duel Mode.
Played Survival for the first time in Duel Mode.
Found Kyūbi's tail and defeated it for the first time in Story Mode.
Unlocked Yinglong as a playable character.
Used a special Triple Rush attack.
Performed a mounted True Triple Attack.