Steam

We haven't received many problem reports for Steam yet.
If Steam is down for you, you might be one of the first to encounter an outage - please consider checking back later. It's also possible that the issue is local or related to your internal network or system.

Steam reports

Steam is a gaming app store that sells and distributes games and enables online gaming. When Steam is down, login may not be working, users can't purchase or download games or online gaming through its servers is not available.

Reports about problems with Steam

I keep getting pop ups telling me I'm not signed in despite being signed in :/ it could just be that my WiFi is crap but it's still a cause for concern.
Stuck on "Loading User Data" when logging in, when trying to force offline mode I still get stuck on "Loading User Data"
Couldn't download titles, close, restart, now stuck on "Loading user data"
steam saying no internet atm but thats obviously not the cause lol
same for me, it dosent work or its super slow.
Steam Cloud refuses to sync eith internet connection, and I find in-game servers super slow on the Steam side.
Anyone else having trouble with the steam cloud?