Sky Fortress
by Hyperbyte
About this game
Defend a floating citadel from airborne raiders. Man the cannons, scramble fighters, and brace for the screen-filling siege engines.
How to play Sky Fortress
Defend a floating citadel from airborne raiders. Man the cannons, scramble fighters, and brace for the screen-filling siege engines.
- Press the Play button to load Sky Fortress instantly, no download or sign-up needed.
- Move with WASD or the arrow keys. Left click or press Space to attack, and hold Shift to dash out of trouble. On mobile, use the on-screen stick and buttons.
- Chase a high score, clear each stage, and beat your personal best every run.
- Tap the fullscreen button for the best view, or scan the QR code to keep playing on your phone.
Tips and tricks
- Start slow to learn the controls, then push the pace as your confidence grows.
- Watch your meters and resources, spending them at the right moment is half the game.
- Short, frequent sessions build skill faster than one long grind.
Frequently asked questions
Is Sky Fortress free to play?
Yes. Sky Fortress is 100% free to play right here on Zunol, with no purchase, subscription, or hidden fees.
Do I need to download or install anything?
No. Sky Fortress runs instantly in your browser. There's nothing to download, install, or update.
Can I play Sky Fortress on mobile?
Absolutely. Sky Fortress works on phones and tablets. Tap the mobile (QR) button on the game bar to scan a code and continue playing on your device.
How do I play Sky Fortress?
Move with WASD or the arrow keys. Left click or press Space to attack, and hold Shift to dash out of trouble. On mobile, use the on-screen stick and buttons.
Who made Sky Fortress?
Sky Fortress was developed by Hyperbyte and is published free to play on Zunol in the Action category.
Is Sky Fortress safe to play?
Yes. Every game on Zunol runs in a sandboxed browser window. If anything looks wrong, use the Report button on the game bar to let us know.
More like this
Scan this code with your phone's camera to keep playing Sky Fortress on the go.