City Siege 4. Alien Siege - Play Free Online

Play City Siege 4. Alien Siege free online — The fourth installment of the City Siege franchise and the first to be set on another planet. Instant play at...

About City Siege 4. Alien Siege

The fourth installment of the City Siege franchise and the first to be set on another planet.

City Siege 4. Alien Siege — Quick Facts

Genre
Puzzle, Arcade
Tags
alien, destroy, ices, shooter
Platform
Web browser · PC · Mac · Chromebook · iPhone · iPad · Android
Input
Mouse
Game mode
Single-player
Added to FastPlayGames
2026-06-13
Distributor
GameDistribution
Price
Free · no downloads · no sign-up
Offline play
No (requires internet connection)
Data collection
None — game runs in a sandboxed iframe

Controls

Use the mouse to navigate the menus and manage your army/buy new troops. In-Game Controls: Click the Drop Ship to deploy your troops.

Frequently Asked Questions

What kind of game is City Siege 4. Alien Siege?

City Siege 4. Alien Siege is a Puzzle / Arcade browser game featuring alien, destroy, ices gameplay. It plays free in any modern browser with no download and no account required. City Siege 4. Alien Siege is designed for short sessions but is replayable enough for longer play too.

How do I play City Siege 4. Alien Siege?

City Siege 4. Alien Siege uses mouse and keyboard on desktop, touch on mobile. Pick up the basics in the first minute and master the puzzle mechanics with practice.

Is City Siege 4. Alien Siege free and safe to play at school?

Yes. City Siege 4. Alien Siege is 100% free with no sign-up required, runs inside a sandboxed iframe on FastPlayGames, and works on Chromebooks, school computers, and most restricted networks. No personal data is collected and nothing is installed on your device.

Who made City Siege 4. Alien Siege?

City Siege 4. Alien Siege is distributed through GameDistribution, a leading HTML5 game distribution platform. FastPlayGames hosts the game so you can play it instantly without visiting the original site or creating an account.

City Siege 4. Alien Siege is a free puzzle game you can play instantly at FastPlayGames. No download or registration required.

Categories: puzzle Games | arcade Games

Tags: #alien #destroy #ices #browser-game #free #shooter

Distributed via GameDistribution.

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