Galactic Untangle HD for the iPad is a puzzle game. It is simple, yet challenging, and can easily keep you occupied for hours.
In each level, you are a given a bunch of points connected by lines, and your goal is to move the points around until there are no lines crossing. In mathematical terms, you are given a graph and it is your job to rearrange the vertices until no edges are crossing, i.e., result with a planar representation of the graph. This game is very strait-forward and simple, but not generally easy to beat. As you progress, the graphs become much more complicated and difficult to beat.
There are two modes in Galactic Untangle HD. In "free mode", there is no stress of being timed and you can relax and play at a leisurely pace. In "challenge mode" you are being timed and you have an option to submit your score to the world scoreboard. However, even though you are asked to enter your name, the world scoreboard does not display names. As someone who holds a few of the records, I find this annoying.
Galactic Untangle is an excellent game. It is designed well and looks beautiful on the iPad's screen. It has a simple objective, yet challenging gameplay. And best of all, it's a fun way to give your brain some exercise!
Video and screenshots after the break!
[$1.99 - iTunes link]
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