Amazon will open access to its Luna cloud game streaming platform on June 21 and June 22, allowing anyone with an Amazon Prime account to test out the service.Credit: AmazonCustomers will be able to nab a seven-day free trial to Luna on Amazon Prime Day, June 21 and June 22. Although the offer itself is time-limited, users can opt to keep their subscriptions active after the trial ends. Previously, access to Luna was given out on an invite-only basis on Amazon Fire TV devices.Read more