Ludum Dare 25 was this weekend, and so I have been working on something. The theme requirement is that the player be the villain, so you are a terrible person who kills innocent cylinders and sets trees on fire.
You can download it here (Wandering Villain (Windows)) if you want to try it.
The following is a series of screenshots of progress. Unfortunately I had to cut a lot of feature ideas due to performance issues and time constraints, but it still looks pretty cool to see it develop.