Space Defenders
Free online arcade game · No download · No sign-up
Getting the invaders ready…
Space Defenders in a nutshell
Space Defenders is an arcade game in which rows of invaders march slowly down the screen towards you. You slide your cannon left and right along the bottom and fire upwards to stop them. Clear every invader to win the wave, before they reach the ground.
- Meet the invaders. Rows of invaders appear at the top. They move from side to side and step down each time they reach an edge.
- Move your cannon. Slide your cannon left and right along the bottom of the screen.
- Fire upwards. Tap fire to shoot. Each hit removes an invader and adds to your score.
- Dodge their shots. Invaders drop shots of their own. If one hits your cannon, you lose a life.
At a glance
- Players
- 1 player beat your best score
- Length
- 5 to 15 minutes per game
- Equipment
- Any screen buttons, touch or keys
- Learn it in
- 1 minute gentle speeds available
Space Defenders questions
Why do the invaders speed up?
In this style of game, the fewer invaders that are left, the faster they move. The last few can be quick, so take your time aiming.
How many lives do I have?
You start with three lives. You earn one extra life when your score first reaches 1,500 points.
What is the ship that flies across the top?
Now and then a bonus ship crosses the top of the screen. Hit it for 100 extra points.
Can I shoot through my own shields?
Yes. Your shots wear holes in the shields just as the invaders' shots do, so try not to destroy your own cover.