We need your help! Explore and dig through the vast caverns, uncover mysteries and hidden treasures in the depths below. Drive huge dump trucks and machines, operate trains and loaders with your friends! Find the artefacts and ancient dinosaur bones then pick up expensive gemstones which you can then in exchange buy weapons and cool items with at the store! 💎 Depending on the type of gem you find you can earn more! 💎 - Transport the valuable resources on board haul trucks and trains over to the giant rock grinder where they are crushed and refined. - If there's an earthquake and lava flows, evacuate the mines as soon as possible! Get out of there! - Become a search and rescue hero and collect people from the mine before it's too late!