How to Play
Enemy missiles are raining down on your six cities. Launch counter-missiles from your three bases to intercept them. Your missile flies to the point you choose and explodes. Any enemy that touches the blast is destroyed.
- Phone / tablet: tap anywhere in the sky to fire. The nearest base with ammo launches. Use several fingers to fire faster.
- Computer: click to fire from the nearest base, or aim with the mouse and press A S D (or 1 2 3) to fire from the left, center or right base. Space fires from the nearest base, P pauses, M mutes all sound and N turns the music on or off.
- The center base fires the fastest missiles. Each base has 10 missiles per wave.
- After each wave, choose one of three upgrades: bigger blasts, faster missiles, extra ammo, city shields and more. Each upgrade has a level cap.
- Your bases are rebuilt every wave. Destroyed cities are not, unless you have earned a bonus city.
Scoring
- Missile: 25 points · Bomber or satellite: 100 · Smart bomb: 125
- End-of-wave bonus: 5 points per unused missile and 100 per surviving city
- The score multiplier goes up every two waves, to a maximum of ×6
- You earn a bonus city every 10,000 points
- Make the top 10 and you can enter your name on the leaderboard
Tips
- Aim slightly ahead of incoming missiles. Your blast needs time to reach them.
- One explosion in the path of a cluster can stop several warheads at once, and every kill sets off a chain blast.
- From wave 2, some missiles split into multiple warheads. Hit them high, before they split.
- From wave 5, smart bombs (flashing diamonds) dodge your blasts. Box them in with two explosions.
- Don't waste ammo. Unused missiles add to your bonus.
About
Missile Defense is a free tribute to the golden-age arcade shooters of the early 1980s. It runs in any modern browser on phone, tablet or computer, with no download or sign-up required. Your high score is saved on your device.