Remote desktop access to VMs in GCP is often done through Identity-Aware Proxy (IAP, https://cloud.google.com/iap/docs/concepts-overview) . Google has an open source RoyalTS-like program called IAP Desktop: https://github.com/GoogleCloudPlatform/iap-desktop that hardly compares to the features that RoyalTS has, but it is the only way to access my GCP VMs. It would be great if RoyalTS supported IAP access.