This game is most definitely made by someone that is well-versed in late-nineties console gaming. The tropes are all here: the Resident Evil door transitions, the Metal Gear Solid dialog, and all manner of other aesthetic and sonic conventions. This is a really loving interpretation of the games of that era.
As the first part of a survival horror game, it plays pretty good. Whilst it isn't yet used, there's a lot of great potential mechanics that are set up: an inventory system, puzzles, and combat. This is an enormous amount of legwork to set up for a jam in such a small amount of time.
And the graphics! They're faithful to the theme and typify maybe the very tail-end of the PS1, or more the Dreamcast. Great use of fonts and prerendered images. The character movement and fixed-angle camera also pretty much epitomises the approach many of these games took with their gameplay.
I'm looking forward very much to the possibility that you continue this project into a fully-fledged game. There's certainly a lot of potential here, and I hope that the groundwork with the engine out of the way, you can continue to work on this if possible and flesh out the narrative you've set up.
I'm not sure what you used to compose the sound, but it's great - the mix of synth pads and bells really fits comfortably into the style that the rest of the game is going for. Definitely another strength.
I think one aspect of constructive criticism is - whilst pursuing a fully-voiced adventure game is super commendable and the output was great, being vulnerable enough to encourage more emotionally varied performances from the voice actors is an idea. I know nineties games sort of commonly had very muted VOs, but there were a few times the lines sort of mismatched the tone of the situation.
I did a gameplay video below:
As I said, really hope you continue on with this project, and the exciting potential that it carries.- FSV