All it means is that the Piston is not the Steam Box that Valve plans to release.

FORBES: Xi3 Is Committed to Piston, While Valve's Steam Box Remains Elusive

With a Steam Box, Valve can have its cake and eat it too.

FORBES: Connect

But if Valve wants to launch Steam Box with an initially exclusive title to draw users to the platform, the Half Life games are the biggest guns in their closet.

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