A free mod for 7 Days To Die, by Squall.
As a system builder, you are the one who manages the resources of your city. In this role, you need to gather materials and weapons to defend your city and help it grow.
The research system is the key element of your strategy. You will need to manage the research of the various attributes in order to expand your capabilities and obtain the resources you need.
In this system, you will find different materials that can be used to craft weapons, armor, tools, and many other items.