Fatal Frame/Zero & Fatal Frame 2 Crimson Butterfly/Zero Akai Chou.
Honestly, I'm not sure why these two games never got all that recognition when everyone creams over Resident Evil and to a lot lesser extent, Silent Hill.
RE deserves its props for popularizing the genre, but it's the most behind in scares & gameplay. Fatal Frame is disturbing all the way through, and its camera-based battles heighten the creepy atmosphere. I never thought I'd be scared playing a video game, but this series proved me wrong.
