Storage capacity and how data is saved need to be confirmed for the plan you're on. Check the plan details in the app or ask support before downloading or installing more content.
Don't assume downloaded files or games will still be there in your next session. Check how saving works and back up important data yourself where allowed.
Need to check a specific case? Contact GenStream or email support@genstream.io with the game name, your device, and the message you're seeing.