SFML is a simple, fast, cross-platform and object-oriented multimedia API. It provides access to windowing, graphics, audio and network. It is originally written in C++, and this project is its official binding for .Net languages (C#, VB, ...).
There is no tutorial for SFML.Net, but since it's a binding you can use the C++ resources:
Of course, you can also find the SFML.Net API documentation in the SDK.
The NuGet package of SFML.Net comes with all dependencies, including native CSFML and SFML libraries for most platforms.
For unsupported platforms or non-NuGet sources, you must have a copy of CSFML. CSFML can be compiled from source or downloaded from the official release page. Also note that since CSFML depends on the main SFML project you also need all SFML runtime dependencies.
Another dependency is the OpenTK library. This is required by the examples to run correctly. It is not required unless you plan on running the example programs that are included.
SFML and SFML.Net are open-source projects, and they need your help to go on growing and improving. Don't hesitate to post suggestions or bug reports on the forum or post new bugs/features requests on the issue tracker. You can even fork the project on GitHub, maintain your own version and send us pull requests periodically to merge your work.