Defending your castle is simpler than history might have you believe. Simply position your mouse over an enemy troop, and use the left-mouse button to pick him up. Make a throwing motion with the mouse, releasing the button to fling your unfortunate victim through the air.
During nightfall, you’ll have the opportunity to upgrade your castle.
Pause: Press 'p' to pause / resume your game.
Repair Damage: Fix damage incurred to your castle
Upgrade Walls: Increase your castle’s ability to withstand the onslaught
Temple: With this upgrade, you can drop enemy units (gently) into your castle to convert them to your side. These converts can be trained or deployed as kamikazee units.
Archery Range: Train archers to defend your castle automatically
Workshop: Train craftsmen to repair your castle automatically
Mana Pool: Train wizards to use powerful spells
Demolition Lab: Allows you to deploy kamikazee units by clicking the convert icons below your castle hitpoints. Click the unit to detonate.
Remember, if your castle falls, you’ll die a horrible, roasty death at the hands of the barbarians!