Nothing left but gameplay and tweaking...
Well, I've got most of the hard parts worked out: a simple in-game editor, a VERY crude GUI system (it's laughable, but for a one week challenge, it's not too bad), and the basic elements of gameplay. What's left is mostly going to be refining everything and working out some of the gamelpay details (having to find the right values to make the game fun and still challenging is proving to be the hardest part). There wont be too much in terms of a battle system, but that's something that can be worked on more after the challenge (who knows, with some other tweaks and some migration to server code, this game could also be made multiplayer!)Here's a recent shot of some in-game action (oil wells, warehouses, apartments, and factories):