Here is the full list of all 50 Yakuza 3 Remastered achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Complete the game.
Defeat Mine in Chapter 12.
Defeat Joji Kazama in Chapter 10.
Complete 50 substories.
Run 42.195km.
Defeat Lau Ka Long in Chapter 8.
Defeat Majima again in Chapter 7.
Defeat Kanda in Chapter 6.
Defeat the man in black in Chapter 5.
Defeat Hasebe in Chapter 4.
Complete 30 substories.
Have your first Revelation.
Pick up 5 pieces of trash from the beach in front of Morning Glory.
Make a modded weapon.
Finish 10 battles with Heat Actions.
Open a total of 10 lockers in Kamurocho and Downtown Ryukyu.
Complete 10 substories.
Defeat Tamashiro in Chapter 3.
Break 30 weapons picked up in battle.
Defeat Rikiya in Chapter 2.
Defeat Majima in Chapter 1.
Earn all other achievements in the game.
Complete 80 substories.
Complete all substories.
Apprehend all hitmen.
Spend 300,000 yen in one visit to a hostess club.
Create a fashionable hostess.
Order the most expensive item in all restaurants.
Claim victory in all Coliseum tournaments.
Encounter all the masters.
Play both massage modes.
Get a hat trick in darts.
Get a break ace in nine-ball pool.
Sing all songs at karaoke.
Get a turkey while bowling.
Earn a combined total of 3,000 points in cee-lo, cho-han, koi-koi, and oicho-kabu.
Earn a combined total of 3,000 points in poker, roulette, and blackjack.
Win 5 stuffed animals in UFO Catcher and get a high score in a shooting game.
Win a game of shogi without ever moving your king.
Win a hand of mahjong when you only have 1 tile concealed.
Hit 2 panels with one ball in the Hard Game at the batting cage.
Hit a 350-yard drive during a tournament in golf.
Catch a tuna.
Complete all minigames.
Play all rounds in Ultimate Match mode after beating the game.
Beat the game on Legend difficulty.
Knock over 100 people.
Initiate 3 battles using first-person mode.
Accumulate 10,000,000 yen.
Pick up 30 pieces of trash from the beach in front of Morning Glory.