Scared, as in screaming scared? Or making you jump type of scared? If it's a screaming type of scared, honestly, I've never screamed from a game. Jumping from a jumpscare? Let's see..
Silent Hill 1, 2, 3, and 4: The Room. 1: The dogs. 2: Pyramid Head, who still owes me a hug. 3: Allessa/ Dark Heather. 4: The Babies on Hands. I think the babies were the most scariest thing I've seen.
Resident Evil 3: Nemesis. That a**hole always pops up out of no where, and makes me go into my panic mode.
Fatal Frame Series: ....... No. Just... Stop.
Ju-On: The Grudge. Ehhhh... I found out about the game from the first youtuber I watched when I was 8-9 years old. She gave me nightmares.
Outlast: *Internally Screaming*
The Thing The Game: This. This is what made me a horror fan. It's so scary, it gave me nightmares 24/7, shjkaugbghadkhbg