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