Alternative to Microsoft XNA Game Studio? [closed]

Answer 1

You could check out Allegro (a game programming library)

Edit to provide more information:

Allegro 4 and Allegro 5 are cross-platform, libraries mainly aimed at video game and multimedia programming. They handle common, low-level tasks such as creating windows, accepting user input, loading data, drawing images, playing sounds, etc. and generally abstracting away the underlying platform. However, Allegro is not a game engine: you are free to design and structure your program as you like.

Allegro 4 and 5 support the major OSs (Unix/Linux, Windows (MSVC, MinGW) and MacOS X). The engine supports 2D graphics primitives natively (you will need a separate API, like OpenGL or DirectX for 3D rendering, but you said that is not your target).

Answer 2

You may want to check out ANX:

The ANX.Framework is a framework which is source compatible with Microsoft's XNA framework 4.0. Source compatibility means, that you can "translate" a XNA game project to be a ANX game project by simply replacing all namespaces from Microsoft.XNA.Framework to ANX.Framework. The advantage of ANX is simply that you are able to swap the RenderSystem, the InputSystem and the AudioSystem. By swapping this systems you are no more limited to run your game using DirectX9 which XNA is using. ANX comes with a DirectX10 RenderSystem as a default. A DirectX 11, DirectX 11.1 and a OpenGL 3 RenderSystem is currently in development. This will make it possible to run your games on Linux and other plattforms which are supported by OpenGL etc. simply by swapping the namespaces.

~ Codeplex site: http://anxframework.codeplex.com/

It is still under heavy development but most of the basic XNA features are implemented.