Research

The research tree is a system that allows players to unlock new technologies, ideas, and abilities for their nation through research. The research tree is typically represented as a branching diagram, with different technologies or ideas represented as nodes on the tree. Each node represents a specific technology or idea that a player can research, and it may be connected to other nodes that are required to be unlocked first before it can be researched. (We don't know that for sure at the moment)