About This Game
Space Invaders is a legendary arcade shooter. Defend Earth from descending waves of alien invaders. Move your ship left and right, and fire to destroy enemies before they reach the bottom. Each wave brings faster and more numerous aliens. How many waves can you survive?
Controls
A/D or Left/Right to move, Space to fire, P to pause, R to restart
Tips & Strategy
Focus on eliminating enemies from the edges first — this slows down the formation's horizontal movement. Use your shields strategically; don't waste them early. Time your shots carefully since you can only have one bullet on screen at a time. Watch for the bonus UFO that flies across the top — it's worth significant extra points. In later waves, enemies descend faster, so clear the bottom rows first to buy yourself more time. Stay mobile and avoid camping in one spot.
Game Features
- Destructible shields that absorb enemy fire
How Scoring Works
Each standard alien is worth 10 to 30 points depending on its row — top row aliens score the most. The bonus UFO that appears periodically is worth 50 to 300 points. Clearing a full wave grants a wave completion bonus. Your total score accumulates across waves, and your best score is saved locally.
Frequently Asked Questions
How many waves are in Space Invaders?
The waves are endless — they keep coming with increasing speed and difficulty. The goal is to survive as many waves as possible and achieve the highest score.
Can I play Space Invaders on mobile?
Yes. The game has touch-optimized controls with on-screen buttons for movement and firing. It works on any mobile browser.
What happens when aliens reach the bottom?
If any alien reaches the bottom of the screen, the game is over. Focus on clearing the lowest rows first to prevent this.