Gatewall

Each wave sends grunts, brutes, bombers and ladder-carriers marching at your keep. Pinch an attacker, drag him around, and release with a flick to throw him off-screen or smash him into the dirt. When throwing isn't enough, work the catapult to lob a boulder into a packed crowd. Clear all ten waves before your castle's health hits zero.

• Drag and fling foes off the edge of the play area to remove them.
• Tougher enemies take more than one toss, watch their hit pips.
• Between waves, spend earned gold on archers, mages, a higher wall, or castle repairs.
• Hold the charge to power up the catapult, then release for a longer arc.

• Desktop & touch: press and drag an attacker, then release to fling him; move the mouse to aim the catapult.
• Catapult (keyboard): hold Space to charge, Up/Down arrows to adjust the angle, release Space to fire.

• Flick fast and upward, release velocity decides how far an enemy sails.
• Save the catapult for clustered waves so one boulder clears several attackers.
• Buy a mage early; the slow splash blast softens groups you can't grab in time.

Gatewall draws on the flick-defense games popular on the early web, grab the attackers swarming your wall and fling them away before they break through, then spend the spoils on archers, mages and repairs. A physics-y twist on the castle-defense game.

Gatewall is an original, free browser game that turns siege defense into a hands-on physics toy: instead of firing on the enemy, you pick them up and throw them. No install or sign-up required.

A free, original browser game on PlayPendium. No download, no install.