Here is the full list of all 47 Yakuza 4 Remastered achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Clear Part 3 of the story.
Traverse 100 kilometers or more.
Complete or finish forty substories.
Clear Part 2 of the story.
Acquire the title "Star of the Coliseum."
Have one of your apprentices win the Rookie Tournament in "Fighter Maker."
Complete or finish twenty substories.
Pick up 20 pieces of trash around the city.
Successfully hit two panels at once at the batting center.
Clear Part 1 of the story.
Earn 1,000,000 yen playing as Akiyama.
Achieve a turkey in bowling.
Acquire three Revelations.
Have a hostess invite you on an after-work date.
Play all minigames at Club SEGA.
Complete or finish four substories.
Open five coin lockers.
Acquire all achievements in the game.
Clear Part 4 of the story.
Clear the Finale.
Clear Legend Mode.
Clear all Ultimate Skill missions.
Max out all characters to level 20.
Clear Normal Mode without reverting to Easy Mode.
Defeat Amon and get through all the substories.
Order something at least once at each restaurant.
Have a hostess wear a present you give her.
Gather at least one outfit from each category in "Hostess Maker."
Receive business cards from all hostesses, including ones you train in "Hostess Maker."
Collect ten emblems from survivors during gang encounters.
Create one or more weapons for each weapon category.
Become a VIP member at the massage parlor.
Smash the ball three times in one match.
Sing all songs at karaoke.
Achieve a hat trick in darts.
Win the first point in Four-Ball billiards.
Play all non-casino gambling games.
Play all casino gambling games.
Achieve a promotion in shogi.
Win a round by forming a concealed hand containing seven unique pairs in mahjong.
Golf and fish five times each.
Possess 10,000,000 yen or more.
Knock over 100 people you pass by.
Purchase five guns playing as Saejima.
Acquire 10,000 casino points playing as Tanimura.
Destroy 100 weapons you pick up playing as Kiryu.
Collect all Memos in the Pause Menu.