At first, it's simple. Connect the squares up. Select a colour, then draw a line to the other nodes of the same colour. It's all really simple. Then, all of a sudden the game introduces different coloured nodes, then it starts limiting how much you can draw. Before you know it, the game has you undoing and redoing single levels just to come up one piece short - then you discover the answer was right there infront of you all along.

Welcome to Linx, the puzzle game in which you make links. Except that it becomes hard, but oh so satisfyingly fun. The good thing is, when the normal levels become too difficult, the game includes over a dozen bonus levels with instructions on how to download more custom levels. The next bonus is you can make your own levels and share them for others to download.