July 2, 2013 - Available today on PSN in North America, release dates for other platforms are as follows:

• Wednesday, July 3rd - PC/Mac (Steam, Telltale Games Store, Worldwide)
• Friday, July 5th - Xbox Live Marketplace (Worldwide)
• Wednesday, July 10th - PlayStation Network (SCEE, Europe)
• Thursday, July 11th - iOS App Store (In-App Purchase, Worldwide)

Also, beginning today,  The Walking Dead: Episode One - A New Day will be FREE on PlayStation Network in North America for a limited time! Don't miss this chance to play the first episode in the award-winning series, as players will need to have at least Episode One of the series in order to purchase The Walking Dead: 400 Days DLC for $4.99 USD or equivalent. 

The Walking Dead: Season One is also coming to the PlayStation®Vita handheld game and computer entertainment system in August and will include The Walking Dead: 400 Days. Featuring hybrid touch controls unique to PS®Vita, fans can now take the apocalypse on the road and enjoy the entirety of Season One in one package.