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Galaxy Defender gameplay screenshot
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Galaxy Defender
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Galaxy Defender

Free to play · be the first to rate it

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ArcadeAction

About Galaxy Defender

Galaxy Defender is a retro space shooter. Rows of pixel aliens march side to side and creep closer to the ground — blast them with your cannon before they land.

Take cover behind the crumbling shields, snipe the flying UFO for mystery points and survive wave after wave as the invaders get faster.

How to play Galaxy Defender

Move with the mouse or ← →, shoot with Space or a click. Destroy all aliens to advance to the next wave.

Controls

Mouse / ← →Move
Space / ClickShoot

Features

  • Classic alien waves
  • Destructible shields
  • Bonus UFO
  • Auto-fire on touch screens
Easy to jump intoDesktop & mobileBeat your best scoreFree forever

Categories: Arcade games, Action games · Tags: aliens, space, retro, shooter · Added November 9, 2026

Galaxy Defender FAQ

How do I get the UFO bonus?

Shoot the red UFO that flies across the top of the screen — it is worth up to 300 points.

Do the aliens speed up?

Yes, the fewer aliens are left, the faster they march.

Can I play Galaxy Defender on mobile?

Yes. Galaxy Defender runs in any modern mobile browser on iPhone, iPad and Android, with touch controls where needed.

Do I need to download Galaxy Defender?

No. Galaxy Defender is an HTML5 game that runs instantly in your browser — no download, no install and no account required.

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