1.. 2.. 3D!

You are a single dimensional being. Even tho your life are fine you always wondered about if there is more then just a single dimension in this universe.. one day you heard about an old tale.. a forbidden temple in the middle of the desert which has the power to grant the one who will pass the test the ability to break through the dimensional barrier, you decide to go there even tho you heard no one has entered this place in more then hundred years.. why is the temple forbidden? What hides inside?.. no one knows. But you are going to find out! Probably..