In the game of Netwalk, you are a network administrator, and someone has scrambled your network. Your job is to rotate all the pieces so that every computer is connected to the server by cables and there are no lose ends in your network. Of course, the less work you need to do to complete your network the better.
The different difficulties correspond to different sizes, with Beginner being 4x4, Medium 6x6, and Expert 6x6 with the added difficulty that connections can wrap from left to right and from top to bottom.