Wurm - Journey to the Center of the Earth! (USA)

About

The plot of this video game deals with mysterious earthquakes that emerge in the year 1999, and the government dispatches explorers in powerful digging machines called Vazorudas or VZRs (renamed WURM in the US manual, but the name is never used in the game). Moby is an 18-year-old leader of one VZR's crew. While doing some research near the core of the earth, Moby and her friends discover that two races of subterranean humans have been fighting a war underground. Contact is lost with four VZRs with the player controlling the crew of the fifth, who discovered that the previous teams were attacked by a subterranean empire of monsters called the Nonmalta. The Nonmalta are at war with a race of peaceful humanoids called the Dinamur, and the VZR crew find themselves embroiled in the war as well.