Stellaris: Federations is a major expansion for the grand strategy game Stellaris, focusing on enhancing diplomatic interactions and alliances among interstellar empires. Released on March 17, 2020, this expansion introduces new mechanics that allow players to build stronger federations, engage in galactic politics, and explore unique origins for their civilizations.

Key Features:

• Expanded Federations: Develop and customize various types of federations, such as Trade Leagues, Martial Alliances, or Hegemonies, each offering unique benefits and progression paths.
• Galactic Community: Participate in a galactic senate where empires vote on resolutions that can impact the entire galaxy, from collective defense initiatives to economic sanctions.
• Origins: Choose from a variety of origins that define your empire's background and starting conditions, adding depth and replayability to your galactic narrative.
• New Constructions: Build the Juggernaut, a massive mobile starbase capable of constructing and repairing ships on the front lines, and the Mega Shipyard, a megastructure that significantly boosts your ship production capabilities.
• Envoys and Diplomatic Stances: Utilize envoys to manage relationships with other empires and adopt diplomatic stances that reflect your empire's approach to interstellar relations.