Unlocked all achievements
Viewed the intro sequence
Finished the prologue
Finished chapter 0
Finished chapter 1
Cleared first Reasoning mode
Cleared "The Open Window" scenario
Cleared "The Strange Story" scenario
Cleared "Nanashi" scenario
Cleared "The Origin and Motive" scenario
Cleared "The Rust-Colored Workshop" scenario
Cleared "Quiet Anger" scenario
Congratulations, case closed!