One interesting thing I noticed when booting up Civilization V was that it has been updated with touch controls for Windows 8. Still, the Yoga 13 performed well enough running Civilization V with most of the settings on medium (though a few settings had to be turned down to low), so you should be able to do some light gaming on this thing without any problems. The IdeaPad Yoga 13 comes equipped with Intel 4000 integrated graphics, so you're not going to have much a powerhouse when it comes to graphics ability. It will become your best friend before long. Luckily, Lenovo thought ahead and included that screen lock button I mentioned above – use it. One wrong move and you'll have the screen switching orientation on you, but that's one of the pitfalls of having so many different modes for the Yoga 13.
The IPS display features 10-point multi-touch, which is certainly nice, though I have to say that the screen seems a little too eager to switch sometimes.