I played a little Galactic Civ3 and the one thing that impressed me about that game over this Civ was the usefulness and viability of diplomacy. In galactic civ3, diplomacy was something you could base your strategy around. you could reliably get people to join wars and trade for all kinds of stuff. It seems like in Civ 6 the developers have a hard time balancing diplomacy. they are too afraid of players taking "advantage" of the AI's. Everything has to be under the AI's terms and timing. You cannot plan joint wars against your neighbors but only the AI can ask you for a joint war.