I tried the game for a few minutes. There are a number of issues. First the game seems entirely AI coded, including the assets, so you might want to update that in the description (the AI voice was kinda offputting). The flashlight system is okay but is too easy to whip the mouse around rapidly to basically illuminate almost everywhere without any limitation, consider using a turning rate limiter on flash light turning and maybe add momentum to player movement so running takes a bit to slow down - it might feel sluggish to some players but it adds tension knowing the character has to deal with physics.

There also need to be more popup explanations and such (e.g. batteries need to be used with the B button), I ran without a flashlight for over a minute using only the minimap lol. Also, the game crashed or the window closed when I used ctrl (note, ctrl is a bad button to use in browser games as it Chrome-based browsers hijack that command... for example ctrl+tab will change tabs instead of some in-game function)!

And for atmosphere, if you really want it to be scary, you shouldn't use generic looking blobs or w/e. The scariest stuff is more subtle, like a door opened when you closed it before, or something in the room that isn't quite right or out of place. A scarier enemy could be something that doesn't move while illuminated but then might disappear when you break visual on it and could appear somewhere else.

Interesting start for a first project! Which part are you most unsure about right now—controls, atmosphere, or level design?