Preview at WWDC likely in June, followed by September launch.
New Apple TV Only Supports Two Bluetooth Controllers at Once
Our sister site TouchArcade got in touch with several developers who have Apple TV Dev Kits to test the limits of multiplayer gameplay on the devices, and these developers found they were only able to connect two controllers in addition to the Apple Remote control.
That means that at the current time, the Apple TV supports a total of three players for local gameplay using controllers, which will likely be the preferred method of control for games like first person shooters and platformers. Attempting to connect more than two controllers causes one of the first connected controllers to disconnect, and multiple Made for iPhone (MFi) controllers were tested by various developers.
Well, this is a bit of a bummer. We just got word from one of the developers who were lucky enough to win the Apple TV dev kit lottery (Who we're not naming because we don't want to cause more Apple TV NDA drama!) who raced out and bought a ton of MFi controllers with the hopes of making a 8 player party game.The limitations on Bluetooth-connected devices do not extend to the iPhone, which can also be used as a controller in multiplayer games. Implementing iPhone control methods is tricker than simple MFi controller support, however, as it requires developers to build custom iPhone support into apps.
These hopes were quickly dashed as they realized that the new Apple TV will only connect to two external Bluetooth devices at once, along with the included remote.
All tvOS games and apps are required to include touch-based controls for the Siri remote, so most titles should work with simple iPhone controls, but many gamers may prefer using MFi controllers. Apple's decision to force developers to build games around touch support has not been a popular one, as it limits games to very basic control schemes.
Apple may be planning to expand the number of controllers supported by the Apple TV ahead of its October launch, but for now, it looks like the device will only support two controllers simultaneously, further limiting the gaming capabilities of the Apple TV.