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