Buildings do different things and each one of them have diffent job. There are four types of buildings, Resorces, Buildings, Defensive, Decorations. Resorce buildings make space for resorces and produce resorces. Because buildings need resorces to build, these buildings are important. The section 'Buildings' are basicly the buildings that arn't Resorce types or Deffensive types. Next, is the deffensive type buildings, these are the buildings which protect other buildings and they kill monsters. But, these can be destroyed by a large/strong force of monsters that the enemies have made so you mast make lots of these buildings or your enemies will loot all your resorce buildings and town halls which will make you lose resorces.