Tutorial: Introduction: Visitors

Introduction: Visitors is one of the tutorials which was presented in the beta version of the game. This tutorial covers:
 * New Spaces and ways of life
 * Gothmothian - Celebramer work in the Space Disco.
 * Atmosphere Filter - Cleans the surrounding air
 * Energy Distributor - Supplies surrounding rooms with energy
 * Space Disco - fulfils the need for entertainment