On the road again

Structures cannot be built anywhere. They need to be linked to roads in order to load/offload goods. Structures which don't produce resources nor goods need roads too (obviously). Here is a simple pattern :

If you follow the project from it's very early beginning, you'll recognize this outline :-)

Command Centers can be built anywhere but only once (during the colonization process), roads must be linked to a structure, and structures must be linked to at least one road.

This part of the gameplay is done. See you on the next step!