Great work, immediately captures the Dead Space feeling and sticks with it. The goo looks great and feels right at home in the space ship. The first monster scare got me pretty good, although I only realized after reloading the checkpoint that you're told to go back and get a weapon.
I did find it frustratingly hard mostly because I couldn't find enough ammo to stand a chance, and after so long the light flickers did start hurting my head, so it may be worth looking into altering the flickers or maybe an option to turn them on/off? Also there were a few moments, only when going up/down planes where the meshes 'seams' in the background clipped through.
Very impressive polish visually. I really like what you've done. The audio in here is great but could more ambient sfx would really help a lot. I jumped right into dead space mode, but unfortunately that also made it feel (for me) like a bad dead space checkpoint where you didn't have enough ammo beforehand. I don't mean to come down on you hard, I like your project so much and wanted to give you my initial perspective. Great work and I'm really excited to see what else you'll do with this.