In this part we will go chapter-by-chapter through the process of level creation. You will learn to make a valid freeVikings map, tell the game where to find it and finally to add some evil monsters.
In the final stage (scripting monsters, items etc.) I expect you to have basic knowledge of Ruby programming language. If you don't know much about it but have some time to learn, choose one of many valuable introductory texts listed at http://www.ruby-lang.org/en/documentation/.