Alone In The Dark: The New Nightmare

Start the game with the "wizardmaster" command line parameter to unlock a cheat option at the inventory screen.

Infinite saves

When leaving the manor's lobby as Carnby, a FMV sequence will play when you meet Edenshaw. In the sequence, he will give you a charm of saving. Immediately save the game when the FMV sequence completes. Keep saving the game repeatedly to get four save uses each time.