What is Space Defender?
Space Defender is a free arcade game that you can play online in your web browser on Gameziko. It needs no download, no install and no account. Pilot your spacecraft through intense waves of alien invaders in Space Defender.
How to play Space Defender
- Press "Play now" on the game screen. Space Defender loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Follow the in-game tutorial or the on-screen hints on the first level.
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Arcade |
|---|---|
| Controls | Shown in the game |
| Screen | Landscape (800 × 600) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GamePix |
| Added to Gameziko | 24 November 2025 |
Description from the developer
Pilot your spacecraft through intense waves of alien invaders in Space Defender. Navigate smooth controls and explosive combat against rapidly intensifying enemies. Collect vital power-ups to enhance your survival in this addictive, wave-based challenge. How long can you protect the galaxy?
Space Defender: frequently asked questions
Is Space Defender free to play?
Yes. Space Defender is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
Can I play Space Defender on a phone or tablet?
Space Defender is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to Space Defender?
If you like Space Defender, try Going Up Rooftop, Piano Tiles Game and Car Parking 3D Merge Puzzle. They are arcade games with similar themes, and you can find more in the Arcade category on Gameziko.
Good to know
Space Defender is made by an independent developer and delivered by GamePix, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.