Space Empires 4x at Above 2
I am a game master that runs a tabletop RPG online for my friend group.
It is just easier for us to play that way and some of us don't live in the same city. However, for those of us that do, I'm going to be hosting occasional in-person game nights.
I got space empires 4X and loved playing it with my wife at two players. BGG suggests that is the ideal player count for this, but if I invited four people over, would that ruin the game by significantly slowing it down or doesn't play decent at those counts.
Also, which expansions are most worth getting once you are used to the game?