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