In the Return to Empire game, resource buildings include five types: residential buildings, quarries, gold mines, mills, and lumber mills. Many players must be wondering how to upgrade resource buildings? The following is what the editor has compiled Return to the Empire resource-based building upgrade guide.

Strategy for upgrading resource-based buildings:

Priority: ★★☆

Resource buildings include five types: residential buildings, quarries, gold mines, mills, and lumberyards.

The first few levels consume less and the construction time is short. We can upgrade them all at once, but it is not recommended to upgrade too much after that, because in the short term we want to leave as many resources as possible to the town center.

The benefits of upgrading resource-based buildings are very low, and their prosperity is not high. If they are upgraded too much, it will slow down the progress of the town center. Therefore, on the premise that one of the same type meets the mission requirements, the others can be supplemented later in the town center.

The above is the guide for upgrading resource-based buildings in the Empire brought by the editor. I hope it will be helpful to everyone.