Google Stadia will only work on four phones when it launches.
The highly-anticipated games streaming service will arrive in North America and Europe in November and has been designed with the goal of combining audiences who play games with those who watch them on YouTube.
In an update to the FAQ for the platform, it states that only the Pixel 3 or Pixel 3a phones or a tablet running Chrome OS will support the service, with iPhones ruled out.
Although users running iOS 11 or Android M or higher can manage their purchases on Stadia on those devices.
Stadia's gameplay will have 10.7 teraflops of power, which the company says is more than the Xbox One X and PlayStation 4 Pro combined.
Existing games including 'Assassin's Creed Odyssey' and 'Doom Eternal' will be housed on the system, while developers will get the chance to include cross-platform play and the option to use saves from other platforms.
Meanwhile, Google also announced it own first party game studio - Stadia Games and Entertainment - with Ubisoft and EA's former executive Jade Raymond heading the brand.