APOCALYPSE by COMPUTER?
They first tricked the virtuals of Screenside into developing systems to control bodies in the human world while operating from within the computer. They then made the virtuals test the systems and make them perfect.
Then they stole the world.
But the computer was only a means of acquiring eternal life, as the goal was to live as immortal humans.
There are many ways to capture human bodies for their purposes. However, for people who intend to live forever, nothing beats growing bodies in farms!