Last year I set myself a challenge to see if I could write a game in Unity, and sell it. So I decided to write a small sliding puzzle game called Muddle Puzzle. I used the professional version of Unity 5.3.x, Visual Studio 2015 Community Edition and C#. It was an interesting experience, and now the game is released on itch.io. The URL to buy the game is: http://yewtree.itch.io/muddle-puzzle. You can view the video below to see the Muddle Puzzle gameply.