Really great! The music is really good, congrats on that.
I love the concept, it reminds me of games like papers please. It hurts having to burn crew members alive :(. It would be amazing if there was some dialogue, maybe them trying to convince you that it's all okay or something. That would be wild! I also love that there are multiple endings, so it's not just a game over screen, it matters what happens.
Overall the design of the game is really well done. It's entertaining, and the feeling of helplessness is well achieved. Congrats on this!
I have to mention that the UI in my case had some problems. At cutscenes, the resolution was higher than my screen so the text was cut and I couldn't read everything. In game, some things were overlapping each other:
The name of each indicator for example. I could deduce which one each of them is, but it does look a little janky.
I would also like to mention that as of now, the game is a tad to easy. If you decide to expand this game that would be something I'd look into. The thing is, because letting someone in boils down to whether the parasite is specifically in their brain or not, you can just simply skip over everything and just check with the x rays the head. No parasite? In. Parasite? Heal or Burn. I tried it and could get al the fuel without losing even a quarter of the oxygen. I was just clicking on the x ray and checking that. Maybe if you let someone in with a parasite there's more chance of other crewmembers getting infected, or maybe they start behaving badly and are uncooperative, etc. Something to add more tension, twists to this.
I loved this game and would love to see it be expanded on!