Facebook wants to completely remove the barrier between you and games on its platform, and it is using HTML5 to accomplish that across mobile and the web. Instant Games are a new feature from Facebook that enable you to immediately start playing a game on Facebook's service without having to install a game or an app. The games may show up in your News Feed when you're on a desktop computer or even when you're browsing on Android or iOS — but no matter what, you can click on the game to boot it up for on-demand action.