Let's see just how much you can handle until your arm gets numb...

Defend Your Castle

And see just how much nomads you can take. I just got to Level 20 until my fortress gave in...

Play Defend Your Castle

The game is quite simple. Here's the description from the website...

Defend Your Castle takes place on a grassy plain surrounded by invaders. You are the commander of your castle, and at your disposal is an invisible hand for picking up the enemy and flinging them mercilessly to their death. It is a good thing you've got that, at least, for the invaders you face are crafty and employ many different types of soldiers in their quest for your castle.

Attacks come at dawn. The Barbarian invaders arrive in relentless waves until nightfall, when they return to their camp... or sleep in your castle, if you are not capable of defending it. Luckily, however, the game provides a few other tricks up your invisible sleeve. For instance, the capability to convert enemy troops into soldiers to help you defend your walls. You can also purchase upgrades and repairs for your castle, and miraculously, they can be administered overnight, while the barbarian hordes are snoring in their camps!

So assemble your troops, plan your strategy, and defend your castle. It's about time you do.