Hold the road for 20 waves. A boss marches in every 5th wave.
Pick a tower, tap grass beside the road to build. Tap a tower to upgrade or sell. Clear a wave without leaks to grow your score streak. Keys: 1 2 3 towers, N next wave, U upgrade, S sell.
Compare a spot before spending gold. Columns run left to right; rows run top to bottom.
Road · outlined road tiles are in range · P planned · T built
Coverage counts road tile centers. It does not predict kills or slow effects.