This is possibly the bloodiest game I've ever seen. Certainly the bloodiest Australian-made game I've seen.
Perth based studio Staring Man has just released the aptly named Pools of Blood for the iPhone. It's a very literal take on the tower defence genre, handing you one central tower to defend from the orcs rushing in at all angles.
Metal band Karnivool, also from Perth, have supplied the soundtrack. And if that isn't the perfect musical accompaniment to the sight of mashed orc flesh, I don't know what is.
Pools of Blood [official site]