Stick Rush

One soldier goes in. An army comes out. Drag your cannon left and right and it auto-fires troops up the battlefield. Steer them through multiplier gates — x2, x3, x4 — and bonus gates that add fresh soldiers to the charge. Pick the right lane and a trickle becomes a flood. Enemy troops stream down to meet you. Matched units wipe each other out, so every gate you hit is ground you keep. Punch through what's left and level the enemy base before they reach your line. Every 13th shot launches a giant elite worth eight regular soldiers — time it into a x4 gate and watch the lane disappear. Levels never run out. Every stage is procedurally generated and scales as you climb, and every fifth is a horde stage that throws faster, thicker waves at you. Coins from every kill buy four permanent upgrades: faster fire, stronger troops, richer payouts, and quicker giants. No account, no sign-up, and the gameplay itself works with no connection at all. Free, supported by ads, with an optional video you can watch to double a level's coins.