'Project Hailstorm' is an as-yet-unannounced update, feature, or fix coming to Google Stadia. Probably. We actually don't know what it means or what it represents, it just showed up within the Stadia APK file on the Google Play Store one day. Yet that hasn't stopped the avid Stadia community from dreaming up what it could mean for the streaming platform.
It's understandable, at least. The 'Project X' convention has been used a couple of times in the past in regards to Google's streaming platform...