A great tower defence game, where you must protect your gems from being stolen, by controling your army of orcs, undeads and deamons.
Instructions: Use mouse (hold SHIFT to build multiple towers or cast multiple spells). The game has a bult-in tutorial. Try to annihilate the enemies before they grab a gem, but even if they do, you’ll have a chance to annihilate them on their way back and you’ll save the gem.