Read from gamesindustry, Stadia Director Of Product answered some questions on reddit:
Doronichev responded to, but was unable to offer specifics about, some of the biggest concerns regarding Stadia, such as what happens if the service is ultimately shut down for one reason or another. A user asking what might happen to their game purchases in such a situation received this response:
"We get this a lot," he wrote. "I hear you. Moving to the cloud is scary. I felt the same way when music was transitioning from files to streaming. I still have all my old CDs in the garage...although it's hard to find a CD player these days
"The same happened to Movies and Photos and my Docs and other files...and it's great! Games are no different. Eventually, all of our games will be safely in the cloud too and we'll feel great about it. We've been investing a ton in tech, infrastructure, and partnerships over the past few years. Nothing in life is certain, but we're committed to making Stadia a success.
"The games you buy on Stadia are yours to play. From day one we'll support Takeout so that you can download your game metadata, including saves if you want to."
"Of course, it's ok to doubt my words. There's nothing I can say now to make you believe if you don't. But what we can do is to launch the service and continue investing in it for years to come. Exactly how we've been doing with Gmail, Docs, Music, Movies, and Photos. That's exactly what we're committed to."
Doronichev confirmed that Stadia would have games across screens, a friends list, party features, voice chat, and a store at launch, while an achievement system, family sharing features, mod support, and further social features would be planned for later.
He also confirmed that the service would eventually see free-to-play games added to it, though none would be available at launch.
"To be clear, Stadia Pro is not 'Netflix for Games' like some people have mentioned," he said. "A closer comparison would be like Xbox Live Gold or Playstation Plus."