Keraunos said:
1) I know that buildings no longer have maintance costs, but..does building improvements increase civic cost? I can feel significant raise of civic cost throught game (and I mean city maintance mostly) even when I expand only lightly. Why? Is it becouse I build city improvements/cities grow/factor increases geometrically instead of aritmeticaly?
Well, I'm not much help with the general mathematics, but I do know (fairly certain) that building improvements does NOT affect maintainence costs. (Except for the Courthouse and Zulu Barracks, which lower maintainence as they claim of course.

) What DOES affect maintainence from cities (and this is probably what you're experiencing) is the SIZE of those cities.
As more pop points are added to a city, the maintainence increases. So naturally, throughout the course of the game, your maintainence will grow as your cities do (and incidentally, your civic cost will grow in the same fashion). The obvious way to counter this is to make sure that you need every city that you found, and that every city you found is able to pay for itself (ie has plenty of arable land and some good resources around).
Keraunos said:
2) What is the math behind calculating unit you can freely maintain altogether/on enemy territory? Is every unit counted, or only military ones? And is ocean/territory not owned counted as "enemy territory"? I think so, but I'm looking for confirmation..
I'm interested in this too. I *think* every unit counts, but I can't be sure. Also, the maths is a bit illusive to me - it appears to go in "steps", with a certain threshold of units causing a 2-3 gpt rise in upkeep costs, but individual units sometimes not making a change. Again, I'd be interested to hear from a more informed individual.
Keraunos said:
3) I repeat my previous question - how to make roads/railroads destructible by airforce?
No idea sorry.
Ifyouhavetoask said:
1) I am playing a game via direct ip with a friend. We are teamed together from the start (i.e we both chose team 1). Is there a way we can trade gold?
Yes, gold can be traded between teammates just as it can in the normal game. That is, one of you must have Currency first.
Ifyouhavetoask said:
2) How can i form a permanent alliance with an A.i player?
First you must make sure to select "Permanent Alliances" in the Custom Game menu when you set up the game. If you do not (which is the default), then you will not be able to sign Permanent Alliances, ever (within that game).
If you've ticked on Permanent Alliances though, then once you get a certain technology (Military Tradition, I think?), then Permanent Alliances become available. I've never used them myself, but I presume they appear in the diplomacy screen. They'll probably be redded out for all but your closest friends, though.
