Action & Reflex
Signal Defender
Missile defense for six towers and three interceptor bases.
Controls saved
Keyboard, touch, mute, pause, and restart are available in-browser. Scores stay local to this device.
Controls
How to Play
Pick target points, launch interceptors, and protect six broadcast towers from cascading missile waves.
Keyboard
Arrows aim, Space launches.
Touch
Tap or click the target point.
Universal
Use the phone buttons for pause, sound, and restart. On a keyboard, P or Esc pauses, M mutes, and R restarts. Typing games reserve letters for play: use Esc to pause and the shortcuts shown in the game. Best scores stay in your browser.