JAMDAT Mobile Brings id Software's Legendary DOOM to Mobile Phones in Europe with DOOM RPG.

LOS ANGELES & LONDON -- id Software's Legendary DOOM Gameplay -- from the Super Shotgun to the Notorious Pinky Demon -- Now Available to Mobile Users Throughout the United Kingdom

Global wireless entertainment publisher JAMDAT Mobile Inc. (NASDAQ:JMDT) announced today the European launch of DOOM(R) RPG, an exciting role-playing mobile game set in the DOOM universe. The game, based on id Software's legendary game franchise, is available now in the U.K. on O2, Orange, T-Mobile and Vodafone. DOOM RPG has been co-developed by id Software and Fountainhead Entertainment.

DOOM RPG is a new take on the world-renowned DOOM franchise. The game preserves the look, feel and excitement of the original DOOM game, while integrating a tactical, turn-based combat system for easy to learn one-handed gaming. Crafted specifically for mobile phones, DOOM RPG sends players to a secretive Martian research facility to solve the mystery of a massive demonic invasion. DOOM RPG captivates die-hard fans looking for a little bit of hell on-the-go while introducing a whole new generation to the classic that started the first-person gaming revolution.

"DOOM RPG takes the classic elements that made the DOOM franchise a worldwide blockbuster and translates them into an exciting made-for-mobile experience," said Mitch Lasky, Chairman and CEO of JAMDAT Mobile Inc. "John Carmack and the team at id Software have created the next chapter in mobile gaming. The title has already been a tremendous success throughout North America and we are excited to now bring it to DOOM fans and mobile gamers in Europe."

"For over 10 years, DOOM has set the bar for action and innovation on nearly every serious gaming platform released," said Todd Hollenshead, CEO, id Software. "Now we're putting a little Hell in your pocket with a new incarnation of DOOM designed and built specifically to deliver all of the game's legendary action in an inventive and easy to control turn-based RPG."

DOOM RPG has already received rave reviews from a number of influential gaming Web sites, including:

WGWorld.com (rated 5 out of 5)

"DOOM RPG is a huge game for mobile phones not just in size but in meaning. For such an important franchise to make it onto a wireless handset and be pulled off so exceptionally well, it speaks volumes as to the quality of games that can be made."

IGN Wireless (rated 9 out of 10)

"DOOM RPG is a superbly playable mobile RPG. The game starts off with a good, easy level for players to get acquainted with the set-up and the general flow of game play, but wade a few levels deeper into hell and the game spirals out of control -- but in the good way. Monsters get brutish and aggressive, better weapons produce splashier bloodstains, and the puzzles deeper. Never a dull moment. Like I said above, although this is based on a game from 1993, DOOM RPG is a fresh experience for mobile... Hugely recommended."

DOOM RPG catapults mobile users into 10 levels of hellish mayhem. Players confront 38 vicious enemies, including returning foes such as Pinky Demon, Zombie and Imp, while finding secrets and fulfilling tasks throughout the UAC research facility. With a brutal arsenal of nine weapons, including old favorites like the Super Shotgun and BFG, as well as cool weapons new to the DOOM universe, players engage in first-person combat with more than eight hours of action-packed gameplay. Gamers can also purchase stat boosters, such as strength and accuracy, to customize their characters and replay game levels to build up characters' abilities.

DOOM and its sequels are among the most popular PC games ever, with millions of copies sold. DOOM games are currently available for the PC and multiple console systems.

About JAMDAT Mobile

JAMDAT Mobile Inc. is a global publisher of wireless entertainment applications, including games, ring tones, images and other content. JAMDAT's application portfolio is based on original and licensed intellectual properties and includes JAMDAT Bowling, Tetris(R), Downtown Texas Hold 'Em, Lemonade Tycoon(R), Bejeweled(R), The Lord of the Rings(R), Tony Hawk's(R) Underground and Scrabble(R). JAMDAT distributes its applications through wireless carriers around the world. For more information, please

visit www.jamdat.com.

About id Software

id -- Freud's primal part of the human psyche and one of the hottest game shops on Earth -- has been rocking the gaming world from Mesquite, Texas since 1991. As a renowned leader in the industry, id Software forged such frenetic titles as Wolfenstein 3D(R), DOOM(R), DOOM II(R), QUAKE(R), QUAKE II(R), QUAKE III Arena(R), and Return to Castle Wolfenstein(R). With intense graphics and mind-blowing action, id's games have helped redefine the modern video game, continually setting industry standards for technology and gameplay. And, in keeping with tradition, id Software has amplified the world of adrenaline pumping 3-D gaming with the release of their latest action title, DOOM 3(R). id Software's advanced DOOM 3 engine is leading the next revolution in 3-D interactive games. Check out more about id Software at www.idsoftware.com.

Safe Harbor Statement - JAMDAT Mobile Inc.

This press release may include forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including statements related to anticipated revenues, expenses, earnings, operating cash flows, the outlook for JAMDAT's markets and the demand for its products. Factors that could cause JAMDAT's actual results to differ materially from these forward-looking statements include its ability to integrate the acquisition of Blue Lava Wireless, anticipated growth in the handset market, its ability to effectively market and sell products in diverse market segments, its reliance on a limited number of products and third-party vendors and distributors, its ability to expand studio operations, increases in fulfillment costs, disruptions to information technology systems, unpredictable events and circumstances relating to international suppliers, increased competition, government regulatory action and general economic conditions. Please refer to JAMDAT's reports and filings with the Securities and Exchange Commission for a further discussion of these risks and uncertainties. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date they are made. JAMDAT undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date they were made or to reflect the occurrence of unanticipated events.

(C)2005 JAMDAT Mobile Inc. DOOM RPG is a trademark and DOOM and ID are registered trademarks of id Software, Inc. in the United States and/or some other countries. JAMDAT, JAMDAT Mobile and the bubbles logo are trademarks of JAMDAT Mobile Inc.