Pick any city on Earth
Search your hometown — if it's missing, we survey it from OpenStreetMap in about a minute and it joins the world map for everyone.
Free browser game — nothing to install
Defend your hometown, street by street.
Real-time tower defense played on the actual streets of your city, drawn live from OpenStreetMap. Pick a town, place your turrets, hold thirty waves.
286 real cities
Matches in 2–7 min
Free, forever
286playable cities
30waves to hold
2–7 minper match
$0now & always
How it works
Three steps to local hero.
Build on real streets
Turrets sit on the roads you walk every day. Every kill pays for the next upgrade — spend it on the right corner.
Hold thirty waves
The pressure ramps from a trickle to a flood. Survive it on Normal, then see how long you last on Impossible — or go Endless.
Play with friends
Or attack theirs.
Open a channel and share the four-letter code. Duel a friend one on one, or field a full squad — up to three defenders holding the city against three attackers. Same streets, opposite sides, live.
1v1
2v2 NEW
3v3 NEW
Open a channel →
ZT4B_
your match code — one code seats the whole lobby, up to six players