Another maze from friend:
"Difficult 3D maze 8x8x5
This is a five-storied 3D maze . Every floor is designed on a grid 8х8 (64 squares, walls behind and ways to the next floor). I tried to design it maximally hard to find exit. All of the components have the same texture which complicates to find exit. Only the bottom has some enlarged texture. Maze does not have bugs and built accurately, without unwanted gaps. You can use all abilities: run, jump, fly (but using a teleport is not interesting :)). Have fun testing your friends and yourself in gumption. Also you can modify this maze.
I hope you will like it. Depending on the number of interested people (buyers), I will decide about continuation of the designing the same things."

