Steves dream about cuboidal fractal rooms [reloaded]

Some days ago steve had a dream. 
He was in a dark, grey room where the walls seemed to consist of cuboids of different size.
At the end of that room, there was a white stairway, leading to a cubic gate. 
As steve decided to walk towards that stairway, he heared an arrow which striked the wall behind him.
There was a skeleton in that room, and at a second glance he saw also a zombie moving slowly towards him.
Steve decided to flee and ran towards that stairway, and as he reached the top, he jumped in a second, larger room.
That room looked like the previous one, and at the end there was also a stairway, same design, slightly larger.
Luckily there were no monsters in that room, but steve could hear those in the previous room moving up the stairway.
Steve ran up the stairway, and at the end there was a gate, where he jumped in the next room.
...which looked, same, but was larger, and at the end of that room, there was a huge stairway. ...

A faint feeling of panic crept in Steves stomach, because he needed more time now to reach the next gate, and he knew that the possibility of monsters spawning would increase with the larger room-size.
But there was also some growing kind of fascination; the cuboidal patterns of walls became more complex and beautiful, the more gates Steve passed through. It looked somehow modern, but also ancient at the same time.

Steve already thought that he would never reach an end, but at some point, he looked into the next room, and there was -  a floating platform - with a small minecraft world on top of it. This room was far more than 130 blocks high, and it was already a small challenge for Steve to reach the ground of that room without hurting too much.
He asked himself how to reach the world, but there was a small waterfall which emerged at the edge of that floating platform high and dark above Steves head.
Steve moved up that waterfall, and finally reached the world.
Soon it would getting dark, he knew, and so Steve started to build a house.


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