Here is the full list of all 59 Yakuza 6: The Song of Life achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Obtained all other achievements.
Completed the game on LEGEND difficulty.
Achieved 100 victories with the Kiryu Clan.
Raised all stats to a natural 300.
Maxed out a Kiryu Clan leader's stats.
Completed the Clan Creator storyline.
Reached level 3 in the Kiryu Clan.
Raised the Kiryu Clan's influence to 10,000.
Completed all substories.
Defeated Amon on any difficulty.
Requested every hostess.
Played every minigame.
Obtained all skills.
Won a baseball game.
Completed 40 substories.
Reached Beloved Customer rank at Snack New Gaudi.
Took a photo of Ono Michio-kun.
Assembled the Kiryu Clan.
Completed all of the main story.
Played every Club SEGA game.
Completed Chapter 12.
Obtained 100,000 total experience points.
Got surrounded by enemies while trying to take a picture.
Raised all stats to a natural 200.
Experienced every RIZAP training.
Completed 100 items on the Completion List.
Chatted with both lovely Live Chat ladies.
Rescued three stray cats.
Completed Chapter 10.
Completed Chapter 8.
Engaged enemies while a drink's effect is active.
Completed 20 types of Trouble Missions.
Ran away from 10 encounters successfully.
Completed Chapter 6.
Found a secret passage.
Raised the Heat Gauge to a natural 150.
Completed 10 substories.
Defeated the Emperor Squid.
Raised Attack to a natural 150.
Raised Defense to a natural 150.
Raised Health to a natural 150.
Raised Evade to a natural 150.
Completed Chapter 4.
Walked 30 seconds in first-person mode.
Pulled "Great Blessing" at the temple.
Activated five types of eatery combos.
Completed 31 items on the Completion List.
Obtained 10,000 total experience points.
Completed 5 types of Trouble Missions.
Activated Extreme Heat Mode 10 times.
Obtained 25 skills.
Experienced the trials of raising a baby.
Completed Chapter 2.
Obtained 10 skills.
Made a store employee angry at you.
Completed 10 items on the Completion List.
Obtained 1,000 total experience points.
Jumped from a dangerously high place.
Arrived in Kamurocho for the first time.