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