Can C# be compiled into programs to run on Linux or Mac or is it and the .NET framework just for Windows?

Question

Based on the Sololearn tutorial I am finding C++ to be fairly similar to C++ but its slightly different syntax seems more intuitive (to me at least). However, while I can easily compile C++ on Linux using the GNU C/C++ compiler or with Code::Blocks, it looks like C# only works with Visual Studio. Are C# and .NET just for Windows? Is there a compiler or IDE for C# on Linux (or Mac)?

Answer 1

http://www.mono-project.com/