Okay I Conqured the City Now What??

Burn it to the ground. Kill them all. Do a little bit of pillaging. A little bit of looting. And a little bit of holding hands.

A captured city's unrest will fall over time.

If you go to city details screen, and hover the mouse over the Unrest stats, you will see a tooltip with all factors modifying it.  There are some of them, so to be brief, and for this case, the most important ones, are:

- Conquered cities recieve a 40% unrest penalty, that will decrease over time (maybe around 1% per turn, so make the account...). That's what you are mainly dealing with now. It takes long to make a city operative after conquering it.

- City dominion not linked to your own dominion causes around a 15% unrest penalty. You can solve it by building outposts and expand the Zone of Control to link it.

- City buildings. Some of them give a bonus against unrest (bell tower, cleric...).  But if you have to build them you will have to wait a lot, so rushing the building is the solution (wars are said to be expensive...). Start by rushing the most effective (cleric if more than 2 essence, bell tower if not), maybe rush one more next turn.

- Champions with Path of the Governor. Probably the only use for these guys, but I have to say it is very effective. The more traits as Administrator (I,II,III...) the more effective. Who has a champ with POTG? Well, you will have from now if you pretend to be a conqueror If you play altar, is easy to use one or two of your henchmen to become that.

- Taxes. Empire taxes causes a general level of unrest. Maybe reducing them could help, if no other option available, and you can sacrifice gildars for that. But in general it doesn't deserve.

Probably, there are other ways to reduce unrest, but they are very situational. For example, there is a spell to reduce unrest in a city, but you need to have it learnt, and it takes a huge amount of mana, so I don't count with it. And there is a city upgrade that reduces unrest, but again, situational: it is a high level city upgrade, and you will use it only for these moments.

Finally, the ultimate way in unrest-control tactics: raze the ****** city! (after a 5 turns cooldown, don't ask me why) 

Yeah, Altar are good at this. I designed a custom henchman called the Mayor whose main job was to get to level 4 as quickly as possible and then settle in cities to keep unrest down and support defenders. If you're lucky though, you'll sweep up a few heroes who are good for this along the way. Kraxis is also good at recruiting governors - in one memorable game I managed to find the governor heroes Gaylyn and Sewell (both Kingdom) and Endis Steelhand (Empire). Gaylyn and Endis both have the road-building ability so I sent them out building a network of highways and gaining levels, before dumping them into captured cities in the wake of my armies. Very effective - Sewell starts with Administrator II (I think) so straight out of the box she can wipe most of the unrest off a city. I think Sions could also be useful for this if you play Empire, although they're more expensive than henchmen, and more vulnerable since they can die.

There's also a low-level Death Magic spell, Oppression, that reduces unrest by 10%, so Empires have another relatively easy and cheap way to make things build a bit faster as long as the city has Essence.

I forgot to say that some AIs do like to Curse some of your cities (+30% unrest I think), and you are not informed about that. You can only know by hovering the unrest stat, as said.

To remove the Curse City spell, you need the Dispell Enchantment, in the Magic Tech tree.

It's because it takes five turns for your Serpent Guards to carry your heavy-ass sarcophagus out of the city before they start burning the place down.

Note also that the spell that costs (I think) 500 mana to reduce unrest in a city also needs an essence, so even if you have the mana you might not want to use it.

The unrest penalty is even higher on higher difficulty. 50% on Expert, probably 60% and 70% on Ridiculous and Insane. Which means you might as well just ignore conquered cities for a while, especially once you start conquering 2 or more in a turn.

Unfortunatly, It will not let me build anything

I will try these tactics guys, really appreciate the input Thanks so much you guys are great!

If you have any other advice, please feel free to post more

Dave

If you cannot start any building, as opposed to every building taking ages, you have a different problem.

Either your city is surrounded by mountains and swamplands, in which case you need to terraform around it, or it's too close to a different city, and then all you can do is raze it (Except in a few, very select cases, that are rare and hard to explain)