Dangerous Rails

In 2020 the excavations for precious jewels forward with the use of new technology. An unknown and lethal substance was used to melt rock and metal with extreme easy. However, a terrible accident happened. It killed all miners. All of them. You, the bounty hunter, got wind of the abandoned mine accident and went on a new adventure in search of gold. But what you did not imagine, was the chemical substance used for the miners. It caused a mutation of beings who lived there... Have fun.