You need to install it to activate the game, and be online *once*. After that, you may set the Steam client to run in off-line mode, and it will not "phone home" with your play data. Once it is activated, you may retain your privacy. It is *not* a requirement that you have an active internet connection to play the game.
Why are there sometimes 2 GBR in a map? Is that a bug or something? I have seen it twice already.
What does it require for a city to suddenly switch civs? Not cs. In my game, an american city suddenly revolts and changed to brazillian city. What happened?
Not exactly the truth. Even after setting it to offline mode. Steam still occasionally resets itself and requires you to connect your internet service to be able to set back to offline. Until you connect you can not play your game.
That's a good point. In addition, I realized that Steam (when you are online) will also automatically check for patches or updates on your behalf.
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Quick question, maybe I'm dumb but I don't see it anywhere, how to turn on those big icons under tiles with resources like fish(icon wit a fishes), iron(icon with an anvil) and so on?
Question regarding trading resources with other civs:
Sometimes when I am attempting to trade luxury resources with other civilizations some of my resources only show up as available to trade with certain certain other civs. For example, when I try to trade with (for example) Greece it shows I have 3 gems available for trade, but when I try to trade with (for example) Korea it shows I have no resources available to trade. Shouldn't I have the same resources available to trade to all other civilizations? Can anyone explain why this might be happening?
The submarines are invisible, until other submarine/destroyer is near, or until you fire, right ?!
But after you fired, and outsighted the enemy, you recover the invisible against the enemies ?!?!