It was also his first chance to have a good look at an alien machine.

None of the alien machines can be commandeered by players.

No one knew what to expect from the alien machine.

Never before had they been able to make even a complete external assessment of the alien machines.

He had never seen so many of the alien machines together.

He is destined to lead their resistance against the alien machines.

I have no faith in an alien machine a thousand years old.

That was how she felt when she had first seen the alien machine.

I had a chance to end our slavery to the alien machines.

So far the alien machines had avoided coming that close.