I image your question is about Stadia in general? The service itself will be fully free in 2020, and all you'll need to do is buy games and play them (like Steam or something comparable). However: ...
See more...
I image your question is about Stadia in general? The service itself will be fully free in 2020, and all you'll need to do is buy games and play them (like Steam or something comparable). However: Until Base arrives (the fully free version) you must currently purchase Premier, which is essentially the cost of a controller and a Chromecast Ultra. There is no way around the purchase of this bundle if you want to use Stadia right now -- but if you want to wait until 2020 for Base, there will be no upfront hardware or costs. Stadia Pro is/will be $10/month. There are benefits to subscribing to Pro, but in 2020 when Base is out, it is not necessary to subscribe to use Stadia. It's fully optional. Benefits include 4K, free games, and other things. Stadia is nothing to download. It requires no installation or hard drive space. That goes for the service itself, and the games. Everything lives in the Google Cloud. Think of it like YouTube: You stream games like a video to a computer, phone, or Chromecast, and play that way. No, but you can play games on your phone (Pixel only for now, but will be expanded later). There is a FAQ here that may be helpful That FAQ above should help, but you can ask questions about anything else.