There are at least three ways this can happen: Another city-state asked you to destroy them That city-state declared war on you (because you went to war with their ally) You encountered a unit of the city state It looks like Hanoi at least you are at war with.

Normally I find this when the target (the one I don't have selected) is fortified. When you select a fortified unit it is unfortified (at least in appearance/temporarily), so then you can swap it with the original unit.

As said on Gamefaqs: Presumably after having enough resources again: I've had this before and I think it is a bug. When I got into a battle with supposedly affected units, there was no penalty. What has fixed it for me in the past is just shut down the game and reload.?

A unit with the "ignores terrain cost" promotion does not benefit from the woodsman promotion at all - I've just chose that promotion hoping for 0.5 but instead forest tiles still cost 1.0 movement point

The maximum number of players/teams you can have in one game appears to be 12. (Disclaimer: I took these screenshots with the Brave New World DLC enabled; it's possible that this DLC or Gods & Kings DLC added this ability, though I'd be surprised if that's the case.) I started the game and went to Multiplayer -> Hotseat, chose a "Huge" sized Map, and then clicked "Host Game", which took me to this screen: (The "Unsupported number of players" warning on the right did give me a bit of pause, but some searching online led me to believe that this was possibly a warning about potential network issues - unlikely, in a hotseat game - and possibly a warning about the unsuitability of the chosen map for the chosen number of players. When I turned off the last 4 players, the warning disappeared, but as you can see below, the game allowed me to start even with the warning.) I scrolled to the bottom, and as you can see, there are up to 12 teams available. To answer your second question, yes, you can choose each slot to be for a human, AI, or "closed", so you can give each friend a slot and close the remainder. Just to verify that it would work, I went ahead and clicked the "Ready" button next to player 1, and the game began. Inside the game it also shows 12 players listed:

Since you are using the Campaign Edition, you will not be able to access faith or religion, as these features were added in the game's first expansion, Gods & Kings. Faith is effectively a new resource introduced in Gods & Kings used to track and make purchases for a civilization's religion. The Campaign Edition of the game unfortunately does not currently have access to the game's expansions (see comments from developer AspyrRyan). Although the edition's developers have been keen to introduce these expansions to the Campaign Edition since at least 2011 at this point it is unlikely the expansions will be added, since it is now 2020 and there have been multiple Civilization games released since. If you want to introduce Faith to your games you will have to purchase a copy of Civilization V and the Gods & Kings expansion through Steam or another platform which supports the base game and the expansion pack on Mac.

According to the Civilization 5 wiki page on coal: Luckily, once you build a Factory, there doesn't seem to be any negative effect if you start running negative Coal resource. It's hard to prove a negative, but the people maintaining the wiki have not found anything, so probably there is no downside.

After having a look at both rules and source code, I can conclude that embarked units are NOT considered naval units. When a land unit is embarked it is unable to attack and unable to defend itself against any attacks. Any naval unit can destroy an embarked unit and will not even lose its remaining moves while doing so. Cities and ranged units can also easily destroy embarked land units by bombing them. In effect, embarked land units are considered to be non-military units. Also, wonders and abilities given to naval units will not be applied to embarked units, and I have killed well over 350 embarked units with Elizabeth (love doing that) without getting this achievement.

All user data is stored in My Documents > My Games > Sid Meier's Civilization 5. Copying this folder to the equivalent location on your new computer after installing the game will transfer your saves. You should double check everything has transferred correctly before getting rid of your old computer though!

There is: Neutral - This is the default state. Friendly - This occurs when you're doing something that the leader likes, for example, Russia likes nations that have a large territory (and many cities), and Mongolia likes nations that have a large army). Friendly does not indicate that they have (or even would like) a declaration of friendship with you, it just means they probably won't be attacking you any time soon (unless they're planning on stabbing you in the back). Hostile - This occurs when you continuously do something that the leader does not like, for example you continue to build cities near their territory. This state does not mean you're at war, but it's generally a precursor to war. Guarded - This occurs after someone has publicly denounced you. It is pretty much meaningless, but it can cause them to become hostile if you continue to provoke them Afraid - This is fairly rare, I've only encountered it a few times, but it occurs sometimes when your army is much larger than the leaders army, and they feel that they might come under attack sometime soon. Most of the time they'll turn guarded or hostile instead, but if their army is sufficiently weak and they don't have enough allies, then they'll be afraid instead. It also occurs fairly randomly sometimes, with the best nation being afraid of you even though you're weaker, not sure why, although sometimes it could be because you're close to winning. Mostly it tends to occur for any of the above reasons after you sign a peace treaty with the other nation that was offered by them. I'm yet to see any more statuses, but I've been playing a long time, so I don't think there are any more.

I made an experiment with two knights both having medic1 + medic2 + fountain of youth upgrade. I then moved one of them on top of a mountain inside my territory and the other one next to it on a non-mountain tile. The knight landing on the mountain takes 50 damage and ends it's turn at 50 ( 100 - 50 ). Then it heals 40 before the end of next turn and takes another 50 damage after the end of turn bringing the total to 40 (50 + 40 - 50). Thus the unit seems to loose 10 hit points per turn. I have no idea why the unit heals only 40 points per turn. Perhaps fountain of youth promotion and medic promotions do not stack at all.

Unfortunately, since macOS Catalina released, crossplay between Windows and Mac is no longer possible. Due to Apple's changing ecosystem with macOS Catalina, we updated Civilization V to continue to work on modern systems. Unfortunately, these changes mean crossplay between macOS and Windows will no longer be compatible. We do our best to provide the best gameplay experience on all platforms and given the option between retiring Sid Meier's Civilization V on Mac or updating the game to 64-bit while disabling crossplay, we opted for the latter. [Source] If you owned the Steam version, you could obtain legacy access, which will downgrade the game to the old 32 bit version [Confirmed to work with version 1.0.3.279]. Unfortunately, there is no such option for the Apple App Store. If you happen to have a backup of an old version of the game (such as with Time Machine), you could try and replace the new version with the old one. Downgrading the game is not recommended, since there is no way to ensure both macOS and Windows PCs end up with the same version of the game. Crossplay only works when both games are of the same version. If you use macOS Catalina, the 32 bit version also won't work. In order to play, you'll need to keep a copy of macOS Mojave or older. Without access to the 32 bit version of the game, your only options at this point are to: Buy the Steam version of Civ 5 and either: obtain legacy access or play on Windows using Boot Camp, or move on to Civ 6 instead. There is no guarantee Civ 6 will fare any better in the future, though. In either case, you'll need to buy another game.

You can pledge to protect a City-State. Before the Gods & Kings expansion the game required you to at least be friends with the city state before you are allowed. The mechanic changed for the expansion however, now allowing you to pledge to protect city states immediately. For some reason, the AI is allowed to pledge city states right away, even in the base game. G&K just evened the playing field in this sense, but you won't need to buy the expansion to use the mechanic.

Do you literally have to have an iron mine for EVERY SINGLE unit which requires iron? Basically, yes. That's how Civ 5 handles strategic resources. In Civ 5, strategic resources work like a population cap: The amount of resources dictates how many of a unit you can have at any time. You'll get the resource back once the unit that needs it dies, or changes into a unit that doesn't need the resource. If you need more resources but don't have any more in your territory, then you can get them from friendly/allied City States, or through trade. If you end up needing more of a strategic resource than you have access to (e.g. by losing territory, losing a City State, or when a trade ends), then any military unit that uses the resource will be subjected to a large combat penalty until you no longer need more of the resource than you have. Note that if you receive troops from friendly/allied City States, those will also use up your resources.

Units gain the Altitude Training promotion when they enter a hex beside Mt. Kilimanjaro.

Technically yes, However they are all world wonders, so there is a good change someone will build it before you have switched twice. But it is possible as stated by the person in this link: https://forums.civfanatics.com/threads/is-it-possible-to-switch-ideologies-for-the-purpose-of-wonder-building.520949/

On your dedicated server... Install Steam from within Steam install Civ5 and any DLC you might want run Civ5 from Steam, this will install a bunch of prerequisites, close the game from within Steam install Civ5 SDK run the SDK from Steam, this will install a bunch of prerequisite, close the SDK dialog that opens (it won't help you). find the steam content install location (typically C:\Program Files (x86)\Steam\steamapps\common) copy the content (everything!) of .\Sid Meier's Civilization V in to .\Sid Meier's Civilization V SDK\Dedicated Server now from within.\Sid Meier's Civilization V SDK\Dedicated Server run CivilizationV_Server (if you run it from the actual Civ5 folder it will run but won't connect!) Set up your game however you like, then click Host Game Windows defender firewall will probably pop up asking for permission; say yes. Done A few other things though. Firstly you'll need to open or forward a whole bunch of ports, either in your cloud set up or on your router, see below. Secondly you might need to launch CIV from within Steam and set the Options>Multiplayer>SMTP settings if you want notifications (but exit once you have set them). Thirdly, once you have the Civ5 server running I think you can exit Steam on the dedicated box. Fourthly, you do not need a GPU to run the dedicated server. TCP: 1745,1795,3074,27015-27030,27036-27037 UDP: 1745,1795,3064,3074,4380,27000-27031,27036 If it's a private game you'll need to connect from you local gaming machine via IP. Any questions or problems I'll try to help, but please make sure you are doing it exactly like this before you ask

Well if they don't block you at 6 means that it's supposed to work at the 10 you can get in the lobby. So at the end of the day, it might be the hosting person that is the problem, or the connecting pcs. At that point I can't really help you. For dedicated servers, maybe. If it hosts the game elsewhere there should be less problems for the one that used to host, but I don't know if it will work. Here's my tip. If it's always the same 2-3 people that DC/Cant join, they should be getting error codes. Google them, they will have some info on that. It could just be they all have the same firewall that for some reason doesn't want to let your connexion through.

There is an unfortunate reason for this, which can be found if you dig deeply enough, and it is that the Mac side of Civilization 5 recently had to undergo a substantial update (giving it a different version), and the corresponding update for the Windows side simply has not come out yet. This means cross-platform play is out of the question. Sources for this are here and here.

They certainly don't switch to other cities. From the manual: Razing the City If you raze the city, it’s gone. For good. All of its buildings, wonders, and citizens are no more.