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.
Complete all Climax Battles.
Complete all substories
Defeat So and Jo Amon.
Complete the Final Chapter.
Play every minigame.
Defeat 30 or more opponents in Endless Rout.
Obtain all abilities for every style.
Obtain all equipment parts.
Complete Chapter 16.
Complete Chapter 14.
Suffer the full force of Reina's attack.
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.
Max out the level of a platinum hostess
Get the best weapon search results report.
Complete one training mission with each master.
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.
Complete the Real Estate Royale storyline.
Complete every disco song on any difficulty.
Defeat Mr. Shakedown for the first time.
Win all Pocket Circuit races.
Get over 50% on your Completion List
Purchase the most expensive property
Throw away a total of five million yen.
Complete Chapter 8.
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.
Go on a date with a girl you met at the telephone club.
Win ten bets on three-round tournaments at JCC.
Get a top-grade item from a Dream Machine
Complete 40 substories
Spend one billion yen
Throw away money on the street
Get 100% share in any area
Get started with Real Estate Royale
Impress Oda with your perfect manners.
Complete Chapter 4.
Successfully negotiate ideal terms with Yamagata.
Watch a sexy video.
Complete Chapter 2.
Complete 10 substories
Treat a homeless man to a ¥20,000 bottle of booze.
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.
Obtain all other achievements
Complete the main story on Legend Difficulty
Get 100% on your Completion List