The beta tag has been removed from Steam Tags, reports Steam News, saying the new feature is now ready for prime time:

With the launch of the Steam Tags beta back in February, we gave Steam customers the ability to "tag" any game or software with genres, themes, attributes, or any other term or phrase that would help customers find similar products. In the time since the feature launched, customers have applied tags more than 4 million times and across almost every product in the Steam catalog.

Our goal for Steam is to keep getting better at helping each customer find the next games that they want to play. Tags are a critical component in helping the Steam store better understand which products are related, which in turns contributes to better recommendations of games for customers. While there are a number of important components in making confident recommendations for customers, this blog post will focus primarily on tags.

So, how do we measure the effectiveness of tags? Let's start by looking at a couple areas where the store is currently generating recommendations and have been affected by the existence of tags.

If you visit a product page for a game on Steam, you'll notice a section just above the reviews called "More like this". With the addition of tags, we can better figure out which games are most closely related thematically and stylistically. As a result, the amount of traffic through the 'More like this" section of the product page has tripled, which indicates to us that customers are finding those suggestions much more relevant.