I'd say this is fairly solid for a simple survival horror. Some odds and ends seem to offset me from the full experience. First of being the disposal of the lighter after lighting the fireplace...to make the valve appear. Seems kinda silly, would've been more interesting to have the valve be revealed with lighting the fireplace and having said valve be amidst the coals and wood. But I suppose writing a new object for each little fetch quest can be quite deterring and slow to the game's progression.
Secondly, perhaps instead of only healing one block of health, the medical kits can heal two. I find it at odds and ends when these creatures eat my health faster than I can let the lead out.
Also some short descriptors or perhaps fearful exclamations of the player character after every defeated monster would instill some more immersion into the experience. I almost feel like it is normal due to the character's mild familiarity with the subject matter though it has come to life before him.
Not really a fan of the art style, but it's not bad on the eyes.
Pretty solid game so far, gonna reload and try again.
Keep at it. We need more horror genre.