Hello everyone, this is my first suggestion post! I'll be brief to start with.

• Most Embassies would either change the way different Faction's Influence borders affect Attitude, or offset the negative Attitude (i.e., "dislike") effect via some other mechanism.
  
  In some cases, for example the Cravers, there might be an exception to this, or a significant variation ("off the cuff" example: a type of Embassy for Cravers might turn negative Attitude into, effectively, "fear", and therefore work toward maintaining "Cold War" instead of prompting hostilities).
  
  
  
  
• Via some combination of focusing on different tweaked types of Embassies (unlocked in stages or enhanced throughout the Research tree) and having a relatively universal set and then unlocking some Faction specific set of them throughout the Research tree, some different concepts and mechanisms feeding into gameplay can be represented.
  
  Some initial food for thought on some types of Embassy functions, whether different buildings or different things offered by buildings to different Factions:
  
  
  • "Foreign Affairs" - focused on affecting Diplomacy.
    
    
    
    
  • "Trade Embassy" - focused on facilitating Trade, thought I'm not yet sure how it is supposed to work...is it intdended that you need a line of systems with "Trade slots" from the Border to more distant systems, for example?
    
    
    
    Obvious fit for emphasis and flexibility for United Empire, and perhaps also a "Science Symposium" variation for Sophons with a corresponding tweak in focus.
    
    
    
    
  • "Border Post" - perhaps focused on regulating ship travel, and/or perhaps setting policies so that you can deliberatly make border interactions hostile with a particular Faction while trading with another...?
    
    
    
    Something even Cravers could have.
    
    
    
    
• Is there going to be any sort of spying/espionage system in the game? If so, this could interact with that as well.
  
  

demalion wrote:
Most Embassies would either change the way different Civilizations borders affect Diplomacy, or offset the negative diplomacy (i.e., "dislike") effect via some other mechanism.

In some case, for example the Cravers, there might be an exception to this, or a significant variation.

werewolf_nr wrote:
Another idea for the embassy would be to make the borders of two empires generate less/no dislike.