What are the 10 best free-to-play Android games?

Looking for some new Android titles to add to your ever-growing collection? Did you pick up an Nvidia Shield Tablet and now need somewhere to show off its awesome Tegra power? Here's a list of ten of the best games you can find for the Android operating system, at the cheapest price around: free! For the low, low cost of nothing, you can load up on an awesome card game from Blizzard, a rhythm game that demands you become strategic, and a buggy racer that's zany and frenetic. Pick up all these titles and then recruit your friends to play with you. Then see if you can make a list of ten free-to-play titles of your own -- there are hundreds out there to choose from! Check out the video below to get started.