So this is just a little test of the new stuff. It now has selectable maps! There's export/import in there, too (export doesn't quite work properly yet). Hopefully eventually you can save the entire map to a "code" that you can paste in the comments. Use the Flash player and try pasting this code: 00000000EGGGG20ml70w0w1w108Eq0ol02ml0K6wQ1kRxl890wqt4WG0022x580wwgo02Ga84KGww0ix3EaEGKW0000050 I also added trees... :D === Click to place road; Space to erase. Use the 1 & 2 keys to switch between placing roads and rails. Arrow keys drive the red car. WSAD drives the blue car. You can't control the trains directly — instead, you can click on points (rail T-junctions) to change their direction. You can overlay roads and rails to make level crossings. The rails allow for all kinds of crazy layouts — one way sections, loops... Have a try! === It now not only uses arrays to remember what's in each tile, but remembers the tile's surroundings, too; which essentially just makes stuff a lot faster (particularly redrawing the entire screen). The cars still don't crash into each other :P that's for another update...