NEW YORK - May 21st 2010 – Paradox Interactive today announced June 6th, D-Day, as the release date for Hearts of Iron 3: Semper Fi, the first expansion to the company’s World War II strategy game. The expansion will be available through most major digital distributors, including GamersGate, Impulse and Steam.

To make this the most rockin’ release-date announcement of the year, Paradox also released an earth-shaking new trailer detailing some of the key features fans will be watching for in Hearts of Iron 3: Semper Fi featuring music by Swedish Metal band Sabaton

The video can be found on Paradox’s YouTube channel at http://www.youtube.com/watch?v=5iZRZbaVBIU

Features of Hearts of Iron 3: Semper Fi include:

· Player-determined hidden victory conditions that will keep opponents guessing

· Greater cooperation with allies, allowing players to request troops, convince their allies to attack a specific target and more

· Hundreds of new events added to immerse players in their own version of World War II, comparing the unfolding, alternate timeline to real history

· Vastly improved AI that will defend its territories valiantly, marshal large naval taskforces and launch multi-stage invasions

For more information and an expanded list of features, visit http://www.paradoxplaza.com, follow the game on twitter @heartsofiron3 and join the growing ranks of the community on Facebook.