Zilch is definitely one of those games that's "easy to learn, hard to master." Games usually run about 5-10 minutes long, which make it an excellent lunch break diversion. The interface is very nicely set up with a nice wooden tabletop theme, subtle sound effects, and one hundred twenty achievements to unlock (so you'll be playing for a while, to say the least). There are three levels of computer difficulty to choose from, a two-player mode, and the promise of online play to be coming soon.