In the strategy game Stellaris, players can form federations with other empires to gain diplomatic, economic, and military advantages. There are three main types of federations: defensive pacts, trade leagues, and research cooperatives.
Defensive pacts are the most common type of federation. They allow member empires to defend each other from attack. Trade leagues allow member empires to share resources and trade goods, which can boost their economies. Research cooperatives allow member empires to pool their research efforts, which can lead to new technologies and discoveries.
