Here is the full list of all 8 PRICE achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Voice part of Requiem(Iva) is unlocked.
Voice part of Requiem(Pirccolo) is unlocked.
Voice part of Requiem(Recorder) is unlocked.
Voice part of Requiem(Clarinet) is unlocked.
Voice part of Requiem(EnglishHorn) is unlocked.
Part 1:E.C.I.R.P is passed
Part 2:P.R.I.C.E is passed
I'm so angry!