About Space Defender
Prepare for intergalactic planetary defense in Space Defender. Inspired by the golden era of arcade shooters (Space Invaders & Galaga), this browser shoot-’em-up features marching alien squadrons, destructible bunker blocks that erode with every projectile impact, and falling enemy laser bombs.
Controls & Battle Tactics
- Move Left & Right: Press A / D or the Left / Right Arrow keys. Mobile users can hold the on-screen â—€ and â–¶ buttons.
- Fire Laser: Tap the Spacebar or the prominent on-screen FIRE button.
- Bunker Defense: The three neon mint defensive structures absorb both incoming alien bombs and player shots. Use them for temporary cover when enemy fire intensifies.
- Bonus UFO: Watch for the crimson and gold mothership traversing the top border. A well-timed laser blast yields an immediate +300 bonus points!
- Escalating Threat: As you eliminate invaders from the fleet, the remaining aliens accelerate their march, increasing their firing tempo and descent rate.
Survival Strategies
- Prune the Columns: Focus fire on complete vertical columns on either flank. Reducing the fleet width restricts how close the aliens can march to the screen margins, giving you more reaction time.
- Shoot Enemy Bombs: Player lasers collide with and neutralize enemy projectiles in mid-air—use your fire defensively when trapped outside a bunker!
Frequently Asked Questions (FAQ)
What causes a Game Over in Space Defender?
You lose a life when an enemy bomb directly strikes your cannon (you start with 3 lives). Furthermore, if any alien invader reaches the baseline altitude of your cannon, the planetary invasion succeeds and the game ends immediately.