Is there going to be a 4K games contest? It seems like it might not happen this year, so would anyone be interested in a different contest. A slick contest has been suggested but I wonder if it wouldn't be more interesting just to open it up with some other limitation. A theme, a time limit and/or maybe a limited resource set (though I have a feeling thats not much fun).
1. The Unholy Offspring Challenge. Create a new game by forcing an unexpected union between two well-known games. Examples might be "Pac-Manhunt", "Medal of Honour: Mushroom Kingdom Assault", or "Galaxian Kart".
2. Rogue Chic Contest. Acknowledging that game programmers are notoriously bad at drawing sprites, all game art must be generated through java.awt.font and a standard typeface. (If you're unfamiliar with Rogue, see the screenshot at http://en.wikipedia.org/wiki/Roguelike
3. Reverse Prototype Challenge. Pick a recent, high-profile, mega-budget game, and imagine how (in a different universe) the developers might have presented the idea to a publisher. The challenge is to capture as much of the character and gameplay of the full game in the simplest, crudest prototype possible. So, for example, "Halo 3" created using 2D stick figures, or "Grand Theft Auto IV" presented as a text adventure.