Viability: It does cut out on my first route unfortunately but the story works well right off the bat.
Presentation: The story is clear, engaging, and the timer is visible enough to cause a bit of panic!
Theme: Going for a horror feel here, and you do well. That timer mechanic and imagery is anxiety producing, Awesome job at selling it so well.
Engagement: Yes, I am very engaged! I would love to see you make an even longer version of this game. Good stuff!