Earlier it was written that in 4 weeks the list of available countries will be significantly expanded.
I also do not know why they have restricted too many counties and till yet the list of allowed countries hasn't been expanded ? I wonder if it has to do anything with the license to operate in those countries ?
So if you are having problems accessing the site now, wait a bit, maybe the expanded list will change this situation. I also noticed that some browsers (like Opera) do not even display the site, they write about the problem with access, while Chrome opens the site without any problems, but does not allow you to register without a VPN.
Is the use of VPN allowed on monkeytilt ? I am sure since this gambling site has its ANN on bitcointalk, many people from the restricted location may try to access it via VPN to see the feel and look of the new casino. Also it seems that they have a quite tough AML Policy and they will ban users if anyone tries to play from the prohibited Jurisdictions.