: Provides a trial version where you can play for a limited time (typically 60 minutes) before requiring a purchase for the full activation code.
If you are already playing and just need help with "power sources" (the in-game mechanic) or level completion: Walkthroughs : Provides a trial version where you can
Unlike previous games, this version requires hiring technicians from a Tech Center to supercharge power plants and install energy savers on houses. Strategic Planning: : Provides a trial version where you can