Rise of Nations Wiki
My subjects are rats in a basket. If I do not keep shaking the basket, they will gnaw their way through.
- Moulay Ismail the Warrior, 17th century sultan of Morocco

Civic.png Civic Research is one of the four technology disciplines available at the Library. It increases the number of cities the player can build and also expands national borders, as well as unlocking the Religion and Taxation technologies at the Temple.


Like all Library research, Civic.png Civic research has a total of 7 levels to research. Each level researched...

  • ...increases the City Limit.png City Limit by +1, allowing you to build/own another city.
  • ...expands national borders.

Note that research cost also depends on the current level of Science.png Science research as well as any cost modifiers from nation powers and rare resources.

Civic.png Technology Cost Required for
1 Civ1.png
City State
120 Food.png Taxation
2 Civ2.png
160 Food.png Religion
Oath of Fealty
3 Civ3.png
160 Food.png
160 Knowledge.png
4 Civ4.png
Divine Right
300 Food.png
300 Knowledge.png
5 Nd.jpg
500 Food.png
500 Knowledge.png
Social Contract
6 Kapowwow.png
Great Power
800 Food.png
1000 Knowledge.png
Income Tax
7 Intlaw.png
International Law
1500 Food.png
1500 Knowledge.png

Rare resources[]

Nation powers[]

  • The Greek Power of Philosophy: Receive a general 10% discount on all Library research cost (except for Knowledge.png Knowledge) and research 100% faster.
  • The Persian Power of Ceremony: Receive a 30% discount on Civic research.
  • The Russian Power of the Motherland: Start with Civic.png Civic 1 (City State) already researched (unless playing a Nomad or City Center Only game), allowing them to build a second city immediately.


  • As mentioned in the trivia section of the Library page, researches have alternate titles depending on the starting and ending ages. For Civic.png Civic Research, they can be seen here.