While I've come to a decent basic understanding of most of the game's mechanics, I'm pretty much at a loss when it come to treaties:
1) I'm unable to predict or even understand which treaties are available in a trade negotiation. A certain level of relations seems to be required, some treaties probably require other treaties and I think some treaties require the other party to have certain diplomatic techs as well, but bottom line is: I'm at a loss.
2) I can't tell which treaties are mutual and which are one-sided. The mouse-over always describes all treaties as mutual, but I've already noticed that several are not. However, how to tell them apart, I have no idea.
Are there some basic rules that I've overlooked? Or is there some detailed description of all the treaties somewhere (I've tried the Wiki, but it has only very basic information on them)?
Thanks & Greetings
Kibou