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