The living-room slot-car track: your little car follows its slot by itself, you only work the throttle. Hold to fly down the straights, let go before the bends; too fast and the tail steps out, stay on it and the car tumbles off the track. Win three-lap heats against the CPU car in the other lane on ever twistier tracks, a figure eight with a bridge included. Free, no sign-up — play right in your browser.