Crystals of planet Niberium

Planet Niberium turned out to be rich in rare precious crystal. Space Corporation Sigma decided to extract these crystals. The extraction was carried out by NKX-627 Robot series. However, soon the Corporation Sigma discovered that they were not the only ones who were interested in the crystals. The invasion of the little-known species of biometal beetles on the planet Niburium was sudden. Numerous…