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
Win ten bets on three-round tournaments at JCC.
Complete the Final Chapter.
Play every minigame.
Defeat 30 or more opponents in Endless Rout.
Complete all substories
Defeat So and Jo Amon.
Obtain all equipment parts.
Get the best weapon search results report.
Obtain all abilities for every style.
Complete the Cabaret Club Czar storyline.
Max out the level of a platinum hostess
Get over 1,000 fans in any area
Complete one training mission with each master.
Complete the Real Estate Royale storyline.
Win all Pocket Circuit races.
Get over 50% on your Completion List
After you become undisputed king of an area, get someone to light a cigarette for you on the street.
Purchase the most expensive property
Throw away a total of five million yen.
Get a top-grade item from a Dream Machine
Get 100% share in any area
Spend one billion yen
Go on a date with a girl you met at the telephone club.
Complete 40 substories
Throw away money on the street
Complete Chapter 16.
Complete every disco song on any difficulty.
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.
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
Defeat Mr. Shakedown for the first time.
Impress Oda with your perfect manners.
Complete Chapter 4.
Successfully negotiate ideal terms with Yamagata.
Watch a sexy video.
Complete 10 substories
Complete Chapter 2.
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.