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