In 3 weeks, there is going to be a competetion named JS13K Games and over 30 days, you will be given a theme and must create a game in JavaScript including this theme.

It would be pretty simple to do, but the game must be less than 13 kilobytes. In comparison, my entire site is over a hundred times as big.

I am going to be making a game for this, but since it's not here yet so for now I'm only going to work ont he engine for my entry (which will be in 3d).

Here it is.
So, far all I've done is removed (and exchanged for lower res) textures and stripped out some uneeded code from this engine.