Have you tried Dementium: The Ward and Dementium II? 1 released on DS, remastered on 3DS. 2 released on DS, was remade for PC. I feel like the graphics alone make them both far better on DS.
1 is far superior to 2 but it’s whatever.
They’re survival horror games that take heavy inspiration from a lot of PS1 survival horror games, though 2 goes as far as to steal the Otherworld mechanic entirely from Silent Hill (literally will make you think you’re playing some kind of first person Silent Hill knockoff) as well as many enemy and environmental designs.