Dec. 5, 2006 – Lyon, France

For Immediate Release
Category: Interactive 3D Applications / Technology

Dassault Systèmes Presents New Virtools 4.0 Solution for "PSP ®" (PlayStation®Portable) Game Development

Faster, Easier Developments with Versatile Platform, Dedicated Support and Consulting

Lyon, France, December 5, 2006- Dassault Systèmes (DS) (Nasdaq: DASTY; Euronext
Paris: #13065, DSY.PA), a world leader in 3D and Product Lifecycle Management (PLM)
solutions, today announced the availability of a new Virtools solution dedicated to game
title development for "PSP®" (PlayStation®Portable). Benefiting from the versatility of
the Virtools platform, this complete solution for “PSP®” with dedicated support and
consulting throughout the game creation, will allow faster and easier developments.

“Thanks to Virtools solutions for the "PSP®" and the permanent support we throughout the game development, we were able to build a superior product in development timeframe with a very limited team. We had to write just a bit code to integrate third party libraries for AI and turn-based multiplayer technology.performance of the Virtools engine on the “PSP®” ended up being outstanding,”
Wyeth Ridgway, president and chief technology officer of Leviathan Games.

“The recent release, Online Chess Kingdoms, presented some major challenges– that we may think when comparing with a traditional chess video games. We loved the end result produced by our partner Leviathan Games. We’re now demonstrating our newly available solutions for the “PSP®” to studios and interested in high quality titles, developed smarter,” says Virgile Delporte, vice electronic entertainment for Virtools.

The Virtools framework brings together GUIs, graphical and text scripting, debug APIs- such as the behavior and render engines- as well as asset integration This framework, now extended to deployments on the “PSP®”, offers flexibility performance. Studios interested in a direct meeting about the “PSP®” solution Game Connection (Lyon, December 5-6-7) are invited to contact us directly.

"PlayStation" and “PSP” are registered trademarks of Sony Computer Entertainment Inc.

About Virtools

Acquired by Dassault Systèmes in mid-2005, Virtools is the leading provider of comprehensive software solutions for building highly interactive 3D life-like applications. Virtools 3D real-time technologies and solutions are used in a wide variety of applications such as simulation of product usage, ergonomic testing, creating the shopping experience, training scenarios, right through to branding, advertising and web marketing applications. Virtools clients include industry leaders such as France Telecom, l’Oréal, Matsushita, Procter & Gamble, PSA Peugeot Citroen, Renault, Sony Computer Entertainment, Ubisoft and Warner Bros Online.

For more information, visit www.virtools.com

About Dassault Systèmes

As a world leader in 3D and Product Lifecycle Management (PLM) solutions, the Dassault Systèmes group brings value to more than 90,000 customers in 80 countries. A pioneer in the 3D software market since 1981, Dassault Systèmes develops and markets PLM application software and services that support industrial processes and provide a 3D vision of the entire lifecycle of products from conception to maintenance. The Dassault Systèmes portfolio consists of CATIA for designing the virtual product - SolidWorks for 3D mechanical design - DELMIA for virtual production - SIMULIA for virtual testing and ENOVIA for global collaborative lifecycle management, including ENOVIA VPLM, ENOVIA MatrixOne and ENOVIA SmarTeam. Dassault Systèmes is listed on the Nasdaq (DASTY) and Euronext Paris (#13065, DSY.PA) stock exchanges.

For more information, visit www.3ds.com

CATIA, DELMIA, ENOVIA, SIMULIA and SolidWorks are registered trademarks of Dassault Systèmes or its subsidiaries in the US and/or other countries.

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