The Invincible (Ace Science Fiction Special 4)

Blurb

The Invincible is a science fiction novel written by Stanisław Lem and published in 1964.
The Invincible originally appeared as the title story in Lem's collection Niezwyciężony i inne opowiadania. A translation into German was published in 1967; an English translation by Wendayne Ackerman of the German translation was published in 1973.
It was one of the first novels to explore the ideas of microrobots, artificial swarm intelligence and "necroevolution", a term suggested by Lem for evolution of non-living matter.