Valve secrets spill over—including Half-Life 3—in new Steam documentary app

The Final Hours of Half-Life: Alyx is now live on Steam as a $10 download, and it's a phenomenal look at the underbelly of Valve video game development, told with a wealth of inside access and a host of multimedia goodies.

The project, as led by journalist Geoff Keighley, is a years-in-the-making look at Valve's journey to release a new Half-Life game, complete with stories about other attempts that never got off the ground. Separated into 12 "chapters," the app is predominately driven by Keighley's text, full of interviews and quotes, and every page comes with embedded image galleries and pictures to drive each point home.

Get ready for a Borealis-load of Valve secrets

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  An interactive slider chart lets you dig through a few surprises in Valve's game-development timeline, which Keighley's story describes at great length. [credit: Geoff Keighley ]

The app's biggest dirt is arguably its confirmation of exactly what started and stopped within Valve on the way to getting Half-Life: Alyx out the door this March. That includes information on Half-Life 3-and it is a much firmer account of Valve's history than what IGN reported earlier this year.

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