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