Here is the full list of all 55 Yakuza 0 achievements. It takes around 150-200 hours to unlock all of the achievements on Windows.
Obtain all other achievements
Complete the main story on Legend Difficulty
Successfully negotiate ideal terms with Yamagata.
Complete all Climax Battles.
Get 100% on your Completion List
Play every minigame.
Complete all substories
Defeat So and Jo Amon.
Obtain all equipment parts.
Obtain all abilities for every style.
Complete the Final Chapter.
Complete Chapter 16.
Suffer the full force of Reina's attack.
Complete Chapter 14.
Defeat the yakuza with an afro on the highway.
Complete Chapter 12.
Steal Nikkyo Consortium funds from their safe.
Complete every disco song on any difficulty.
Defeat 30 or more opponents in Endless Rout.
Complete Chapter 10.
After you become undisputed king of an area, get someone to light a cigarette for you on the street.
Defeat 3 foes using co-op moves with Oda or Tachibana.
Win ten bets on three-round tournaments at JCC.
Complete the Real Estate Royale storyline.
Purchase the most expensive property
Win all Pocket Circuit races.
Get 100% share in any area
Complete Chapter 8.
Complete the Cabaret Club Czar storyline.
Max out the level of a platinum hostess
Throw away a total of five million yen.
Get over 50% on your Completion List
Get over 1,000 fans in any area
Get started with Cabaret Club Czar
Take more than 15 minutes bringing the takoyaki.
Complete Chapter 6.
Throw away money on the street
Get started with Real Estate Royale
Go on a date with a girl you met at the telephone club.
Impress Oda with your perfect manners.
Complete Chapter 4.
Complete one training mission with each master.
Spend one billion yen
Get the best weapon search results report.
Complete 40 substories
Complete Chapter 2.
Treat a homeless man to a ¥20,000 bottle of booze.
Watch a sexy video.
Complete 10 substories
Get a top-grade item from a Dream Machine
Pick up a telephone card.
Defeat Mr. Shakedown for the first time.
Purchase ten or more abilities.
Get five or more play bonuses fighting a single enemy.
Visit Kamurocho in December 1988.