If you would like to use Code::Blocks instead of Visual Studio, there's a few things required in order to use for developing Orx projects.
These are:
Code::Blocks can be downloaded from: http://www.codeblocks.org/downloads/26
The version required is codeblocks-16.01-setup.exe which doesn't come with a compiler.
Run the installation and choose the default options. Then run Code::Blocks.
Code::Blocks needs a compiler. MinGW-w64 is the correct one to use for Orx.
Start by downloading and running the installer and go through the steps. These are outlined on this page: http://orx-project.org/wiki/en/tutorials/compiling_orx_with_mingw32_gmake
Follow the steps titled Getting MinGW-w64 and Updating the PATH environment variable.
You're all good to go.