Even though I was able to sign in with Google Play Games. Furthermore, I was unable to sign in with just Google on android even, while using the Unity docs guide for logging in with just google. Second, how can I log-in with regular Google log-in if my app is not a game, or if my app is for desktop or web versions, because getting the Session Token is only possible with the plug-in, that works only on android. Appearently, the app user can go into settings and sign themselves out, this is why, so I tried this, and I couldn't find a way even with the instructions on how to sign out. After signing in once, it will automatically sign in everytime the user opens up the app. Edit: I found out that the devs for the GPGS plugin removed the SignOut() method. But how do I stop automatic autherization on app start up after it has been signed in once. Click to expand.I was able to sign in with Google Play Games Services the first time.