Stellaris: Federations is an add-on for the global real-time space strategy Stellaris. The addition will significantly expand the arsenal of diplomatic techniques — manipulation, persuasion, trading of interests, threats and espionage. With its help, it will be possible to unite the entire galaxy into a single union, thereby achieving a full-fledged diplomatic victory. Now membership in a federation (trade league, military alliance or hegemony) will be amazingly profitable, and eventually the Galactic Senate will be formed. This trans-galactic political structure meets on a variety of issues, and its majority promotes its point of view.
The add-on requires the original version of Stellaris.