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