Skyfall

Tap or click anywhere in the sky to launch an interceptor from the nearest armed silo. It streaks up and blooms into a ring of light at that spot.

Anything caught in a bloom dies — and a kill spawns a smaller bloom of its own, chaining into anything nearby.

Keyboard: arrows / WASD move a crosshair, Space or Enter fires from the nearest silo, 1 / 2 / 3 fire from the left, centre or right silo. Gamepad: stick moves the crosshair, A fires, shoulders help pick a silo.

Warheads (orange) sometimes split into 2–3 as they fall. Smart bombs (green, wave 8+) dodge your blooms. Planes (magenta, wave 5+) and satellites (violet, wave 12+) fly level and drop more warheads.

Ammo is limited per wave — a silo with none can't fire, and a warhead that reaches a silo empties it. Between waves, leftover ammo and standing cities add a bonus, scaled by the wave multiplier.

Every 10,000 points rebuilds one destroyed city. Lose all six and the run ends.

Modes: Campaign is 30 waves with a checkpoint every 5. Endless loops forever, ever denser. Daily is 15 seeded waves, one attempt. Survival gives you one city, no rebuilds, and asks how long you can hold it.