Nested rock formations. I don't know if it is a bug, a bad algorythm or intentional, but from time to time I run into rock formations for ore that are inside of other rock formations. The example today is aluminium in iron. I notice them when the jackhammer transitions from the known ore to the unknown ore text. The rocks already behave strange when using the jackhammer, but they really act strange when they are nested. The end result is something that would need work to be considered ready for general game play though. That kind of behavior will get bad reviews which translate to bad sales.
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