ALIEN: Isolation

[HorrorElementFilms]

You do have weapons - at the very least, a flamethrower. The game may not be about mowing down hordes of aliens, but the character DOES have some means of defense. Which actually makes sense in a survival horror game, because even if it's not very effective a cornered human will try anything to keep alive.

Yes, I forgot they mentioned a flamethrower, and I also heard you start off with a wrench. But if there's just one Xenomorph, than I'd heavily assume that you cannot kill it. Maybe deter it, but only that. And it would also make sense that even if you could use it, it would have negative impacts as well as positive. Perhaps, firing it up close could deter it, but firing from afar could lead it to your location.