(via emulation) – Many fans call Code Veronica "Claire’s Requiem" because of its melancholic prison island setting. You can legally emulate the PS2 or GameCube version using PCSX2.
You're looking for information on Resident Evil: Raccoon City (not Requiem) or possibly Resident Evil: Revelations, but I think I have a better match:
If “Requiem” appeals because of dark, horror themes: