Great job on creating an immersive atmosphere and story!
The voice acting was very well done, and the level was designed quite nicely. I noticed that moving left and right tilts you as well, which I thought was a clever way of adding realism. The flickering when full sprinting was quite intense, and that could've been intentional so I only channeled it to about 1/4th, but the first time you end up doing it you have to look away.
It was a bit boring, for me, but regardless I loved the entry.