SquirrelMath Protect your castle from waves of attackers! Strategically position your defenses, upgrade your arsenal, and unleash powerful abilities to preserve your stronghold. Can you endure the siege?
Mouse / Keyboard
Desktop, Mobile, Tablet
Yes! Defend Castle is unblocked and free to play on SquirrelMath. It works at school, work, or anywhere — no downloads or registration required.
Yes, Defend Castle works on desktop browsers, tablets, and mobile phones. Play it anywhere, even on school Chromebooks.