Here is the full list of all 25 The 25th Ward: The Silver Case achievements.
Walked 2.5 km on the chapter select screen.
Talked to Red a total of 51 times.
Completed #03 without losing to any of the hitmen.
Completed all chapters.
Completed *06 YUKI
Completed #06 white out
Completed *05 MISOGI
Completed “05 moon over 25
Completed #05 electride
Completed *04 SIZUKU
Lost the game.
Completed “04 the lunar orbit
Completed #04 digital man
Completed *03 YOGORE
Completed “03 about nighthawk
Completed #03 boys don't cry
Completed *02 TIGIRI
Completed “02 quiet cradle
Completed #02 good looking guy
Completed *01 NAGARE
Completed “01 underground theater
Completed #01 new world order
Completed *00 UTSUTSU
Completed #00 prototype
Watched all endings.