Exemplary game. I've gotta say, this was very interesting on a philosophical level. I love the ending where you get picked up by the ship, after being infected, and it basically says the ship isn't heard from again...
Massive plot-twist right there... :-) I hope quite a bit of people got that bit.
Really interesting concept nevertheless, it'd be so cool if scriptwelder could continue this, make a sequel to this; I think he could go a lot of ways with this, like somebody that actually has to somewhat run and hide or kill the astronaut, or otherwise the player :-)