Multitaskor, can you multitask?
The game: http://www.ludumdare.com/compo/ludum-dare-27/?action=preview...
The source code: https://github.com/davidgomes/multitaskor
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I'll also add this is my third Ludum Dare and I love it every time - the community is brilliant, the blog works amazingly and as you work on your entry it's very easy to keep track of other people's work and failures too. I try to keep motivated by looking at the progress of others and keep myself working despite other people giving up. In the end, it's all about having fun making games and no game-making jam is nearly as cool as Ludum, it is the queen of game making competitions.