Maintenance for the week of March 16:
• PC/Mac: No maintenance – March 16
• ESO Store and Account System for maintenance – March 18, 6:00AM EDT (10:00 UTC) - 4:00PM EDT (20:00 UTC)
It isn't just steam by the looks of it. I'm also unable to login through the regular ESO launcher and cannot access my ESO account on the ESO website .