XNA GAME STUDIO是一套有着强大功能和简单界面的游戏制作平台,游戏开发商和游戏玩家都可以使用这套工具开发针对Windows XP以及Xbox360的游戏.NA GAME STUDIO分为两种版本,一种是面向初学者的EXPRESS版本,还有一种是面向专业用户的专业版.用户使用EXPRESS版本开发游戏完全免费,并且 可以随意在PC上发行,不过用该工具开发的游戏若是在360上网络发行,就需要交纳99美元的年费.下载:Microsoft XNA Game Studio Express 1.0

 System Requirements and Prerequisites

    * Only supported on Microsoft® Windows® XP SP2 (all editions) at this time.  Windows Vista will be available only in a future beta release of XNA Game Studio Express.
    * Hardware requirements are identical to those for Visual Studio 2005 plus a graphics card that supports DirectX 9.0c and Shader Model 1.1 (Shader Model 2.0 support recommended).
    * This release requires Microsoft Visual C# 2005 Express Edition to be installed before proceeding.  You can install Visual C# Express from the Visual C# Express Download Page. However, other members of the Visual Studio 2005 line of products, for example Visual Studio 2005 Professional, can co-exist with XNA Game Studio Express on the same computer.