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