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← THE GOOD OLD DAYSGAME NO. 003
EARTH DEFENSE DIVISION

SPACE INVADERSORBITAL DEFENSE

INCOMING TRANSMISSION
SCORE000000
PERSONAL BEST000000
Canvas support is required to play.
THE LAST LINE OF DEFENSE

THEY’RE
COMING.

Hold your ground. Break the formation.
Keep Earth off their itinerary.

PRESS ENTER TO LAUNCH
FLEET
STANDING BYWAVE 01
←→ or A D   MoveSPACE FireSHIFT ShieldP PauseNO COINS. PLANET-SIZED STAKES.

DRAG THE BATTLEFIELD TO MOVE & AUTO-FIRE

PILOT BRIEFING

Hold the line.

Move & fire
Use Left / Right or A / D to steer. Hold Space to fire. On touch screens, use the controls or drag the battlefield to move with automatic fire.
Use cover wisely
Bunkers absorb enemy fire, but both sides can destroy them. Press Shift or tap Shield for 2.5 seconds of protection. Your pulse shield recharges in 12 seconds.
Read the formation
Invaders accelerate as their numbers fall. They descend each time they reach the edge. Clear every invader to start a new wave with restored bunkers.
Keep Earth safe
You have three ships and earn one extra at 10,000 points. The run ends when your ships are gone or the invaders reach the defense line. Mystery ships give 100–300 bonus points.
Take a breather
P or Escape pauses; M toggles sound. Leaving the window pauses automatically. Your best score stays on this device when browser storage is available.