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ArcadeOwl Retro Arcade

Outpost Defense 18

Blanket the sky and keep every city standing through the barrage.

What is it?

Press play and Outpost Defense 18 is ready — zero downloads, zero waiting. Blanket the sky and keep every city standing through the barrage.

How to play

• Falling missiles streak down from the top toward your cities along the ground.
• Tap a spot in the sky to set off a defensive blast there.
• Any incoming missile that passes through your blast is destroyed before it lands.
• Lose a city every time a missile gets through — protect them all.

Why you'll love it

• Free to play instantly — no download or sign-up
• Full touch, mouse and keyboard support
• Saved best score and local leaderboard
• Authentic 1980s arcade feel with CRT scanlines and pixel glow

Ready?

Free. Instant. No download.

▶ Play Outpost Defense 18