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