My tactic for 5th sandbox start with 3 metal mines oil well 3 labs 2 natural gas power plants(if u have too much of energy disable one) and disabled coal power plant next factory and landfill close to metal mines 3-4 garbage trucks upgreaded to natural gas fuel then 2 farms try to upgreading garbage trucks and power plants and lower smog to about 550 before first night rest days are easy
 "Little Cave Hero"){kind=icon}
 "Papa's Freezeria"){kind=icon}
 "Tyrant"){kind=icon}
 "Boom Barrel"){kind=icon}
 "Meteor Invasion"){kind=icon}
 "Super Energy Apocalypse : RECYCLED!"){kind=icon}