Valve has announced a new app that allows Steam users to stream their game library to Android and iOS devices. Steam Link is set to launch sometime during the week of May 21 on the App Store and Google Play, and will work with compatible phones, tablets, and TVs. Steam Link will require either a 5Ghz Wi-Fi network or wired ethernet connection to a Mac or PC running Steam. Steam Link also offers support for Steam controllers and Apple's MFI controllers, as well as other unnamed controllers. Valve is also launching a Steam Video app later in the summer that will let Steam users watch their purchased movies and shows on Android and iOS devices, and includes streaming and offline viewing options.