UPDATE: This issue is now resolved. https://store.steampowered.com/news/app/253230/view/3215015328427149675 We're currently experiencing an outage in the Steam backend for Online Party after a [url=https://store.steampowered.com/oldnews/125571]Steam Client update on March 4th[/url]. As a result, Online Party is currently unavailable. We've engaged in discussions with Valve on the issue and hope to have a fix available with their assistance. However, given that this issue may be related to the Steam Client, we expect a fix to take some time to deliver. We'll post an update here once the issue is resolved.