Microsoft XNA Game Studio 3.1
Microsoft XNA Game Studio 3.1 makes it easier than ever to create great video games for Windows-based PCs, Xbox 360 consoles (with an active premium XNA Creators Club subscription), and Zune digital media players.
XNA Game Studio 3.1 enables hobbyists, academics, and independent game developers to easily create video games for Windows, Xbox 360, and the Zune digital media player by using optimized cross-platform gaming libraries based on the .NET Framework in the C# programming language.
This release is incremental to XNA Game Studio 3.0 and contains many new features, including avatars, Xbox LIVE Party support, and video as well as enhancements to existing features.
Supported Operating Systems: Windows Vista Service Pack 1; Windows XP Service Pack 3
Hardware requirements are identical to those for Visual Studio 2008, plus a graphics card that supports DirectX 9.0c and Shader Model 1.1 (Shader Model 2.0 is recommended and required for some Starter Kits). Zune development requires the Zune 3.0 firmware.