No alliance option avaliable under diplomatic screen
before you ask, but both civs have alliance tec and is friendly
What the title said. I'm using steam's ultimate edition, and I'll also add that I have never observe the AI forming alliance either.


I have the alliance tec, and since it's not an option for trade, I assume the Zylon empire also have the tec.
Do anyone have any clues as to why this is the case? I'll really appreciate it if someone could find a solution, because I much rather win this game with an alliance victory than to take on that Zylon war machine.