Valve Implements Steam Tags; A New Way to Categorize and Filter Games
Last Friday, Valve added a "Recently Updated" section to Steam. Today, Valve has introduced Steam Tags. If you're a frequent user of the Internet, you're probably already familiar how tags work. Even the OCC forums have a tagging system, though it's rarely used.
Any Steam user can tag games or software with terms he or she deem relevant, and the most popular tags become featured categories, "helping everyone discover products through a new set of genres, themes, and attributes defined by you and the rest of the community." The system is considered to be in beta right now until enough data is collected, but it's already live on the site for all to see and use. Steam Tags also happen to be language-specific based on the language you have Steam set to, so if you tag a game in English, that tag is only visible to other people with Steam set to English.
When you visit the Steam Tags page, you can either choose to view global tags, your personal tags (if you made any), or tags recommended for you. When visiting a game's store page, the popular tags for said game appears underneath the release date in the top-right summary section. Your personal tags also appear below the popular ones, which allows you to produce your own categorizing of sorts. It's also important to note that owning the game is not a requirement for tagging.
In addition to the new Steam Tags, Valve has also introduced new filtering tools to help users more easily discover games with attributes they're looking for. After clicking on a tag that interests you, you can click on the "See all..." button to go to a new page that then allows you to filter your search by category, feature, and/or operating system. Unfortunately, as of now, there is no way to combine tags into a single search; so if you're interested in discovering all tower defense games featuring zombies, you'll have to select just one of those tags and do a little digging. Hopefully multiple-tag-selection is something Valve implements in the future.