Facebook recently revealed that it would open up its Messenger platform to third-party apps, and we're now seeing how you'll be gaming on it. Facebook told TechCrunch that Doodle Draw is the first "true game," for Messenger -- until now, it's only permitted GIFs, audio and the like. I gave it a whirl, and it's basically a social version of "Pictionary." It suggests a word, then you draw it on the screen and share it on Facebook or privately to friends on Messenger. From there, they try to fill in the blanks and guess what it is. In short, it's a droll simple game, exactly suited for a chat tool like Messenger.