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This article is considered accurate for the current version (1.12) of the game.

Kingdom rankAztec
Primary culture
Aztec (Central American)

Capital province
Mexico (852)

Despotic MonarchyGovernment monarchy.png

State religion

Technology group
Ideas and traditions
Traditions.png Traditions:
+10% Infantry combat ability
-10% Idea cost

War exhaustion cost.png Flower Wars

-10% Reduce war exhaustion cost

Legitimacy.png Sustaining the Gods

+1 Yearly legitimacy

Manpower recovery speed.png Telpochcalli

+10% Manpower recovery speed

Morale of armies.png Eagles and Jaguars

+10% Morale of armies

National tax modifier.png Imperial Tribute

+10% National tax modifier

Production efficiency.png Floating Gardens

+10% Production efficiency

Spy offense.png Pochtecayotl

+20% Spy offense

Idea bonus.png Ambitions:

+25% National manpower modifier

The Aztec are a country located in Central Mexico. It is also the primary nation of the Aztec culture.

Note: If converted from a CK2 game where Sunset Invasion DLC is active, they will have special national ideas and the High American technology group High American technology group, which is equivalent to Western tech.


Main article: Aztec events


Idea Groups[edit]

The Aztecs has as traditions positive modifiers in the infantry combat ability and idea cost. But as many Mesoamerican nations they have Mesoamerican technology group Mesoamerican technology group which has a penalty of +150% tech cost making very difficult to get any kind of technology. The only thing that helps to the Aztecs in this situation (before Westernization) are the great skills of its rulers that generate tons and tons of monarch points. Even though this little advantages the penalty of tech cost makes only possible for a primitive civilization like this to get at the level 10 of each technology group. In the case of the Administrative tech, the Aztecs only could unlock three "Ideas slots". For the first three "Ideas slots" are recommended any these ideas:

Administrative Ideas

  • Expansion: This will help to expand faster in the American continent and will grant permanent Causus Belli against Chinese, Indian and African civilizations. The last thing, if in a future, the country westernize and decides to expand outside the American continent.
  • Administrative: The core-creation is useful when its trying to expand the territory by conquests or colonization. Also the bonifications in the maintenance and recluitment of mercenaries are useful in cases, just like in the process of westernization and European invasions.

Diplomatic Ideas

  • Exploration: Useful to discover the rest of American civilizations or Europeans colonies in the continent. Also lets another opportunity for expanding in the country and will grant permanent Causus Belli against primitives, in the case the westernization has finished.

Military Ideas

  • Aristocratic Ideas: Its useful before and after the arrival of the Europeans. First because in case of an European victory in Aztecs territory would be difficult for them create cores in the lost territory. Also the manpower modifier is useful for the creation of bigger armies against the technological advantage of the foreigners. And reduces the military tech cost.
  • Defensive Ideas: At the arrival of the Europeans, the fort defense modifier, reinforce speed, land maintenance modifier and more attrition for enemies are the greatest options for resist their invasion.
  • Quantity Ideas: In combat with a more advanced army the best option is to have a larger army. The manpower modifier and recovery speed increased will make easier to fight against the Europeans.

Reformation of the religion[edit]

With the new patch of El Dorado the Nahuatl religion has the Doom mechanic whose effects results in total chaos for the country if it reaches the 100. The only ways for reducing the Doom is by doing "Floral Wars" or sacrificing kings of subject nations. To start reforming the religion they need to enact reforms. The Aztecs can enact them by having 5 vassals, no rebels, positive stabilty and less tha 50 Doom. Are in total 5 reforms and repeat the process for each one. The first thing to do is to start the vassalage of the closest nations. Using their military advantage start the conquest with their closest enemies, just like Tlaxcala, Zapotec, Mixtec, Tarascan and Tlapanec for examples. Also the Aztecs can ally with other countries like Itza, Colima and Kiche. The perfect Causus Belli for starting the conquest is the "Flower Wars" which not only helps reducing Doom it also can makes demanding vassalization easier, but it makes more difficult annexing enemie's provinces.


  • War exhaustion.pngMonthly war exhaustion: -0.05
  • Diplomatic upkeep.pngDiplomatic relations: +1
  • Discipline.pngDiscipline: +5%
  • Colonists.pngColonist: +1
  • Stability cost modifier.pngStability cost modifier: -20%

Expansion and Colonization in America[edit]

While the reformation of the Nahuatl religion happens, the expansion of the glorious Aztec empire into all the American continent can begins. It can be done by conquering and annexing all the Mesoamerican countries that are around the Aztecs. But also, thanks to the fourth reform, they have access to a Colonist that can be used for expanding the empire to the north or the south. The south can be only able for colonization when the conquest of the southern nations in Mesoamerica has finished. The north has many opportunities just like the rest of the Mexican territory, the Californian land or the Floride (which is option of colonization for the Europeans). All of this are good in their way but the south has its own advantages. While the north have many useful land and many weak, or at least small, native nations to conquer or if starting the westernization is a priority, is easier to colonize the south because the portuguese and spanish powers are the first to colonize the New World by starting with the southern part of the continent. The main problem is that some of the southern nations are so powerful as the Aztecs. Take the most ideas that helps to accelerate the colonization of both sides, or not, of the continent before the european nations starts agressively colonize the region.


One strategy is to save all the monarch points available, but at the same time investing them in Administrative and Military Tech and get the Ideas Groups and be in technology advantage against the rest of the native nations. The colonization is an useful tactic because it helps to find faster the Europeans colonies and start the westernization. Be careful when the process starts because when it begins it not only makes the stability drops to -3 it also increase the revolt risk and it will trigger many events, just like rebels, which can drive the country into a chaos if the correct decisions are not made. The problem is that if the westernization begins in a bad moment or too late other countries would use this as an opportunity for breaking the territory and conquer many provinces with relative facility. The best moment for start the westernization is when the colonial provinces are very small and the metropolis is distracted by any war in their home continent. After it has finished the process, invest all the monarch points in improving the Military and Naval Tech.

Dealing with the Europeans[edit]

Before Westernization[edit]

If encounter with the Europeans is inevitable before starting or finishing the Westernization these are some advices that can help to survive a war against them:

  • Have full manpower.
  • Stockpile money for mercenaries if they are required.
  • Take loans if its necessary
  • Choose Defensive or Aristocratic ideas.
  • Ally with other powerful native nations or with european nations that are rivals or enemies of those who are more probable to attack first.
  • Construct defensive buildings in strategic ubications.

In the case that the war is going in a bad way and the enemie has occupied many of the territory the only thing that can be done is to negotiate with him. The best offer is to accept the defeat, give all the money that he wants and only give him two or three minor provinces (or the necessaries).

After Westernization[edit]

If the process has finished the first thing to do is to invest all of of monarch points in technology and ideas and fight with equal opportunities against the European nations. Even if its finished the process many great powers will try to conquer the Aztec's territories. The best way to protect from the colonizing nations is allying with another great European power that is not interested in colonization, for example Austria, Ottomans or Burgundy. This will make that the metropolis, in a war, will focus his forces in his own continent distracting them to reinforce to their colonial provinces.

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