Allows you to repeat your entire script, or using a label repeat parts of a script. No parameter, or a parameter of 0 (ie - loop 0), will repeat the script indefinitely.

• //===============================
  // Upgrade everything in your
  // city, as long as tech and
  // resource requirements are met
  //===============================
        upgrade
        loop
  
  //===============================
  // Upgrade your farms, sawmills
  // and your ironmines, then
  // repeat the process again
  // 5 times
  //===============================
        upgrade farm
        upgrade saw
        upgrade iron
        loop 5
  
  //===============================
  // Upgrade your farms, sawmills
  // and your ironmines, then
  // upgrade cottages and repeat the cottages again
  // 5 times
  //===============================
        upgrade farm
        upgrade saw
        upgrade iron
        label cotupgrade
        upgrade cottage
        loop 5 cotupgrade

ScriptControlStructures