After announcing that Steam would be coming to Linux earlier in the year and kicking off an internal beta last month, Valve is now inviting users to sign up for the Steam for Linux beta.
A message posted on Valve's official website today read:
We're looking for Linux gamers to install and test our new Steam for Linux client. We are primarily interested in experienced Linux users.
In order to take the survey, you need to first login with your Steam account to link your response with your Steam ID. Note: You must have cookies enabled in your browser to continue
To sign up, visit Valve's Software page and login with your Steam account.