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