How to Start Programming with MPS

The purpose of this tutorial (aka 'The Simplest Language' tutorial) is to show basic steps necessary to create an MPS language and write a program (solution) using that language.

By following the tutorial you will:

Getting Started with MPS, most up-to-date tutorial by Tracy Snell
The Simplest Language screencast by Konstantin Solomatov

Also, couple of earlier versions of the same tutorial: How To Start..