
Google Stadia games on TV are now accessible via any controller or smartphone

Google continues to support its cloud game streaming service Stadia with new features. Today it was revealed that the service allows any third-party controller to access Stadia on supported Android TVs.
The same feature will be available for TVs with Chromecast Ultra or Chromecast connected to Google TV. To top it off, the new feature will allow iOS or Android devices to become touchscreen controllers for Stadia.
This touchpad control will also include the Google Assistant icon. Another addition is the "Capture" button, which allows you to record gameplay and take screenshots.
The rollout of this feature started yesterday, September 27th.
How to add controllers to Stadia Android TV / Google TV?
Launch the Stadia app on your TV
Choose your avatar and controller icon
Launch the Stadia app on your phone
Tap the controller icon
Tap the controller you want to use
Click Play on TV. Your TV will display a code that will need to be entered
How to add mobile touchpad controllers to Stadia Android TV / Google TV?
Launch the Stadia app on your TV
Launch the Stadia app on your phone or tablet
Click on the controller tooltip, you can now use the device as a controller