You guys (both, boys and girls) may not know what TPT (http://www.powdertoy.co.uk) is, so let me explain. If you have played dan-balls powder game, you have a basic idea what TPT (The Powder Toy) is. It's a particle simulation open source game, with awesome tools for... pretty much everything. You can see my profile over here http://powdertoy.co.uk/User.html?ID=29068 . Now I'm working on a pixel-art 3D city on it. Usually cities are made 2D in games like this, but I like to challenge myself, and gain ultimate respect from the awesome people of TPT, by creating possibly the most epic city particle simulation games have ever seen. You can check