If you have an unused Rubick's Cube you have now a Carcassonne-like game in your hands!
Oh, well. I have no rights about Carcassone, tiles, logo, trademark, etc etc. But it is the best modern board game. I love it.
Oh, well, well, I have no rights about Rubick's cube neither.
And I was inspired by this 'ible (https://www.instructables.com/id/Rubyrint-rubik-cube-labyrinth/
). Thanks to derte84.
The cube is easy to make. I hope you enjoy it.