Dot NET Framework

Irrlicht Lime - currently actively developed .NET bindings
Official thread

Irrlicht.NET development has been superseded in favour of Irrlicht NET CP [1] which is a wrapper for using Irrlicht in Microsoft's .NET Framework or in Mono:
IrrlichtNETCP by DeusXL

Project home page is not accessible but you can download last release (Nov 27 2007) from sourceforge' summary page at:

This project appears dead. The link below is no longer valid.

Last SVN commit was May 29, 2008.