@Kagutsuchi Are you using a UK based internet provider, or is it something entirely specific to Isle of man? (apologies, as I'm not too familiar with Isle of Man)
I'm asking since I've seen players in Puerto Rico wasn't able to play for similar reason, even though in the help page it was stated it's available there. I'm not saying any note with regards to Isle of Man though.
@Kagutsuchi What I'm guessing is Stadia is looking at your IP, and for one reason or another determine that you're not based in UK. After reading Wikipedia, I'm still not quite sure the relationship between Isle of Man and UK, so I can't say much more.
It might be worth a shot to contact Stadia support and see if they can help you out with this
Go to the link below:
On top right, click on 'Contact Us' > then request chat/callback to speak to a representative. Try it from a computer browser if the option is not shown on mobile
I think, and please correct me if I'm wrong, but saying the Isle of Man is in the UK is a bit like saying Monaco is in France.
The Isle of Man, and some other locations (Channel Islands as an example) are not actually part of the United Kingdom, although they are British Crown dependencies, technically or perhaps legally speaking they are not part of the United Kingdom.
Of course, Google may have a different interpretation of what locations are part of their UK rollout for Stadia, but I suspect, although willing to be corrected, that it is more likely limited to mainland UK and Northern Ireland; rather than the British Isles which would encompass the Isle of Man, Channel Islands, the Hebrides etc., the Isle of Wight would be an exception, as that is actually a county within the UK and considered to be mainland UK even though it's an island.
Final note, is Google Store available from the Isle of Man, or did you have to use a VPN to gain access? If it isnt normally available then that also could indicate if Stadia is or isnt available...maybe...
I'm on the Island as well, did you manage to get any further info on this? Won't work for me either, strange as it would let me set up an account but not let you play the games?
I guess this thread is fairly old now, i am getting the same message and wondering has there been any progress from Google regarding getting Isle of Man based players access to stadia? Im keen to get cracking on it