Greenlight is being retired. For more information on how to submit games to steam, refer to this blog post.
Hexapod Defense Force
Possible 2 Player Implementation!
January 13 - Binary Cocoa

We threw around the idea of having a 2 player system in the game when we were first developing the game. We never got around to it because of the long development time it took to make, but now that we look back on it we really think that it's a good idea. Hopefully we'll have some screenshots of it soon!