Unreal Engine 3

CARY, N.C., March 11, 2010 - Epic Games, Inc. and Valve Software LLC, two of the PC industry's leading technology and content development studios, have inked an agreement to deliver Valve's Steamworks suite of services to all licensees of Epic's industry-leading Unreal Engine 3 for use in their products, free of any additional fees.

"Valve has created a world-wide phenomenon with Steam and we're excited to be able to have the Steamworks suite of services available to Unreal Engine 3 licensees so they can take full advantage of all that Steam has to offer," said Mark Rein, co-founder and vice president of Epic Games. "With Valve offering these services free of charge, the idea of providing the Steamworks SDK to all Unreal Engine licensees was a no-brainer."

"Epic's technology is one of the most widely used engines in the industry and has powered many of the best games created in the past 10 years, on multiple platforms," said Gabe Newell, co-founder and president of Valve. "It's an honor to have Steamworks included in the technology offered to all Unreal Engine 3 licensees. It's hard to think of a larger, better targeted group of developers who could derive more benefit from the Steamworks services."

Unreal Engine 3 is a complete game development framework for next-generation consoles and PCs, providing the vast array of core technologies, content creation tools, and support infrastructure required by top game developers. Every aspect of the Unreal Engine has been designed with ease of content creation and programming in mind, with the goal of putting as much power as possible in the hands of artists and designers to develop assets and gameplay in a visual environment with minimal programmer assistance; and to give programmers a highly modular, scalable and extensible framework for building, testing, and shipping games in a wide range of genres.

Steamworks is a complete suite of publishing and development tools that offers PC game developers and publishers access to the game features and services available through Steam. These include product key authentication, copy protection, auto-updating, social networking, matchmaking, anti-cheat technology and more. The features and services available in Steamworks are offered free of charge and may be used for both electronic and tangible versions of games.

For more information on Epic's Unreal Engine, please visit www.unrealtechnology.com.

For more information on Steam, please visit www.steamgames.com.

About Epic Games

Epic Games, Inc., based in Cary, NC and established in 1991, develops cutting-edge games and cross-platform game engine technology. The company has created multiple million-selling, award-winning titles in its "Unreal" series, including "Unreal Tournament 3" for PC, PLAYSTATION?3 and Xbox 360?. Epic's "Gears of War" won over 30 Game of the Year awards, and the sales of "Gears of War" and "Gears of War 2" have eclipsed 11 million units. Epic's Unreal Engine 3 is the three-time consecutive winner of Game Developer magazine's Best Engine Front Line Award, was the 2008 Hall of Fame inductee and won Best Engine again in 2009. Unreal Engine 3 has also been recognized as the number one game engine by Develop magazine. Additional information about Epic can be obtained through the Epic Games Web site at www.epicgames.com.

About Steam

The leading online platform for PC games and digital entertainment, Steam delivers new releases and online services to over 15 million PC users around the world. For more information, please visit www.steamgames.com.

Epic, Epic Games, Gears of War, Gears of War 2, Unreal, Unreal Engine, and Unreal Tournament are trademarks or registered trademarks of Epic Games, Inc. in the United States of America and elsewhere. All other trademarks are the property of their respective owners.

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PRESS CONTACTS

Doug Lombardi

For Valve Software LLC.

lombardi@valvesoftware.com

Laura Mustard

Chair Entertainment Group for Epic Games, Inc.

laura@chairentertainment.com