I am having a problem. I cannot find Steam on Ubuntu Software Center. I was able to find it before I installed Ubuntu, but now I am not able to find it. Any suggestions?
Open the .deb file directly from steam's website and it will open the software centre, even when it's already installed.
here is the link:
Steam is available in the official repository only for Ubuntu 12.04. So you'll have to download it and install it seperately