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Mine
Move the drill along the rail in order to mine as many resources as possible while dodging projectiles. The drill automatically shoots every few seconds, so you only have to worry about positioning yourself properly.

Upgrade
Upgrade the drill and mine in many ways as you move through the skill tree.

Demolish
Crush through layers of rock with powerful machinery in order to get to the depths of the mine.

Unlock
Unlock new machines and passives in order to power up even more.