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.
Pick up 5 pieces of trash from the beach in front of Morning Glory.
Accumulate 10,000,000 yen.
Sing all songs at karaoke.
Play both massage modes.
Claim victory in all Coliseum tournaments.
Create a fashionable hostess.
Defeat Mine in Chapter 12.
Complete the game.
Apprehend all hitmen.
Defeat Joji Kazama in Chapter 10.
Complete 80 substories.
Order the most expensive item in all restaurants.
Encounter all the masters.
Defeat Lau Ka Long in Chapter 8.
Defeat Majima again in Chapter 7.
Make a modded weapon.
Complete 50 substories.
Run 42.195km.
Break 30 weapons picked up in battle.
Defeat Kanda in Chapter 6.
Defeat the man in black in Chapter 5.
Defeat Hasebe in Chapter 4.
Finish 10 battles with Heat Actions.
Have your first Revelation.
Complete 30 substories.
Spend 300,000 yen in one visit to a hostess club.
Complete 10 substories.
Open a total of 10 lockers in Kamurocho and Downtown Ryukyu.
Defeat Tamashiro in Chapter 3.
Defeat Rikiya in Chapter 2.
Defeat Majima in Chapter 1.
Earn all other achievements in the game.
Complete all substories.
Get a hat trick in darts.
Get a break ace in nine-ball pool.
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.
Pick up 30 pieces of trash from the beach in front of Morning Glory.