Underland Steam CD Key - discussion

"The astronauts who set out in search of a new habitable planet have just returned from their failed mission. However, the Earth's surface is no longer habitable and they discover that the remaining population now lives underground. The supposed path there is buried and the only alternative is to dig and dig into the underground city. " The elevator is the transport to the underground of the planet. Avoid green acidic fluid. Dig and dig. Cannons and various other objects. Puzzles that involve
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