Facebook's next foray into the gaming space is giving players a chance to try mobile games out before they download them. The social network is calling them "Playable Ads," which is fairly self-explanatory. There's a lot of advertising mumbo-jumbo in Facebook's announcement, but the key takeaway is that you'll be able to play a brief section of a given mobile title within the News Feed (from the App Store or Google Play, not a Facebook game) without actually downloading it. Google has tested similar with its Instant Apps and plenty of free-to-play titles have playable advertisements stuffed into their experiences.