Valve is constantly working towards improvements for its PC gaming storefront, Steam. These improvements are rare, in part because Steam is already so popular and successful, so Valve instead releases them as what it calls Steam Lab experiments. Steam users are able to opt into these experiments, which can be added to the full platform if they're well-received. The latest Steam Labs experiment is once again trying to improve Steam's recommendations with a feature that Valve calls Store Hubs.
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