Unfortunately, this won't be as terrifying as the original Alien on the Commodore 64 and what I meant about that was every playthrough was random. You did not know who the android was, nor did you know where the Alien was; every playthrough was new and different.
That being said, if the developers do not have any scripts set up where Ellen reaches 'big turn of events a' and the alien doesn't show up but does on a different playthrough, great but I'm not getting my hopes up. It would be too much to ask the devs to make a game where the alien truly wanders the ship and only turns its attention on an area that Ellen passed through or makes noise around. I'm billing this as a limited combat-orientated "Tomb Raider in space."