Fails to connect to steam on startup. Restarting Steam does not solve problem. Startup screen and message attached.

What OS are you using? If it’s linux & proton make sure you are using proton 10.

If this doesn’t solve the issue try reinstalling Steam and the game.
I’m having the same issue. I’m on a Mac (M4 Pro). i’ve reinstalled Tabletop and Steam (and rebooted) and still see the same issue. On Launch, the console reads “Could not connect to Steam. Please restart Steam.” The Server browser says “4837 In Game”, but there are zero games listed.