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.
Move with WASD, jump with space, and mouse to destroy things. Unfortunately there is no objective and instead you can just explore a bit.
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.