MechCube: Escape

Very little is known about nature of the object called "Cube". From the outside it is a huge matt black monolith made of an unknown metal. The material of which the "Cube" is built has extraordinary hardness and is absolutely unaffected by any external influence. There is only a single gateway on its surface and it allows to enter exclusively alive and conscious members of the human race. From the inside the "Cube" is an endless set of rooms, corridors and compartments that spreads for much greater distances than one can guess looking at "Cube" from the outside. It is believed that this discrepancy between external and internal volumes is a consequence of the object's existence in several parallel dimensions at the same time. The questions "how?", "when?" and "for what?" this object was erected remain a mystery. The assumptions about its creators vary from alien origin to the version that the "Cube" is a...