Traffic Lights: Signal Flow

Turn a light green with one tap and keep every car moving. If two flows enter the intersection at the same time, they crash and you lose a heart. Simple to learn, hard to master, with over 1,000 handcrafted levels. HOW TO PLAY Tap a signal to turn it green. Time each light so crossing flows never meet. You have 3 hearts in every level and can earn up to 3 stars. A FULL CAMPAIGN Over 1,000 handcrafted levels across 56 worlds in a three-act campaign. ALWAYS SOMETHING NEW Level crossings, roundabouts, star junctions and pedestrian crossings Ambulances, fire engines and police cars that need priority Trucks, buses and construction vehicles Ferries and metro lines Rush hour waves that test your timing PLAY YOUR WAY Set the game speed anywhere from half speed to double speed. Speed never affects your stars. Chain safe passes to build your combo multiplier. A BRIGHT LITTLE WORLD Colorful top-down graphics, day and night, rain and fog, windmills and fish. MADE FOR SHORT BREAKS Portrait mode, one-handed play and short levels.