Greenwave City: Traffic Lights

A calm, minimalist puzzle about traffic lights. One tap switches a junction — keep the city flowing as it grows street by street.

Greenwave City is a minimalist traffic puzzle in the spirit of metro maps. You are the city's traffic controller: tap a junction to switch its light and keep cars moving.

• ONE TAP, REAL DECISIONS — switch only when the junction is clear. A driver who can't brake in time will run the amber. • THE CITY GROWS — new streets open as you play and the camera pulls back. One crossroads becomes a whole grid. • NO JAMS — every entrance has a queue. Let it overflow and the city stops. • WEEKLY UPGRADES — overpasses, smart lights, slow motion, wider entrances. Choose one every week. • GREEN WAVE — give ambulances a clear road for bonus points. • 8 CITIES, 24 STARS — from a single crossroads to full rush hour, plus a daily challenge that is the same for everyone. • PROGRESS EVERY DAY — missions, daily rewards, player levels, themes and six sound packs. • CALM BY DESIGN — clean colours, soft generative sounds, ×2 speed when you want it faster.

Plays offline. Portrait, one hand.