The Irrlicht Lime is a .NET wrapper for the Irrlicht Engine. It wraps most of API available in native library, easily allowing you to use 2D/3D graphics in your app, written in C#, VB.NET or other .NET language. Currently Lime is being develop under Visual Studio 2010 with .NET Framework 4.0. It includes bunch of examples and IntelliSense documentation. Lime is not a distinct "engine", it is a wrapper with almost the same architecture witch native Irrlicht Engine has. You do not need to download/compile Irrlicht Engine, wrapper already has it and ready to be used straight from the box.
If you have any questions or propositions feel free to share in English or Russian.