'For this demo, AT&T created a front end experience to enable gamers to play Batman: Arkham Knight directly from their own website and the game is playable on virtually any computer or laptop.' 'This is being powered by the Stadia technology,' an AT&T spokesperson said in a statement to IGN. Customers only need to sign in on a PC through a Chromium-based browser using their phone number and billing zip code. Though not branded as such, Batman: Arkham Knight can be streamed by AT&T customers through Stadia without needing a Stadia account. In a not-so-surprising move, Google appears to be lending its Stadia streaming tech to other companies through a white label.