Бур: путь вглубь

You control a drilling machine on the edge of an abandoned field. Below are coal, iron, copper, silver, gold, emeralds, rubies, diamonds, and star alloy. The deeper the ore lies, the more expensive it is. Each approach is limited to three things at once: fuel, hull strength, and hold capacity. It's easy to go down - gravity pulls you down. It is expensive to climb: jet thrust burns fuel three times faster than a drill. Therefore, the main solution here is the same and constant: dig even deeper or turn around while there is enough fuel for the return journey. The mark on the fuel scale shows the required reserve, so that the decision is always informed. The mine is created anew each time, so there are no identical descents. Deeper voids, pockets of combustible gas and lava lakes await. Spend the proceeds in the workshop: drill, tank, hull, hold, engine, radar and a mine elevator that opens the launch from the depth already traveled. Refueling and repairs at the base are free - it's impossible to get stuck without fuel and without money.