Civitas is a free-to-play strategy empire-building browser game written in Javascript with the help of the jQuery library . Players develop and maintain their settlement from initial village to a fully grown metropolis, influencing and conquering the neighbouring settlements.

There is no set goal, game is played on an infinite-round basis and there is a server component planned. The focus of the game is to manufacture and trade resources in order to raise the level of your city.



  • Over 80 types of buildings, each intertwined in the chain of production.
  • Custom climate zones, each with specific buildings.
  • Global market, player can trade goods with other settlements.
  • Army! Navy! Soldiers! Ships!
  • Fame system that allows your city to level up via trades, conquers and special buildings.
  • Prestige system that affects diplomacy.
  • Each city in the game world is linked via an influence system that needs to be maintained for diplomacy to work.
  • Random events that can change your diplomacy status with the other cities, give you coins or random resources.
  • Espionage, influence cities, destroy buildings, sabotage.
  • Ranking screen, where cities get ranked according to their status in the world.
  • Declare war, propose alliances and pacts, ask other settlements to join your city, propose cease fire.
  • Heroes, unique classes and items, attributes.
  • Server component, no actual data is saved externally, only in your browser’s localStorage.
  • Jailer component that assures game data integrity (no cheating).
  • Any player interaction since no data is transmitted to the server component.
  • Artificial Intelligence (AI) for computer-controlled cities.


Click here to play the game.


In development, Civitas is using several assets that are copyrighted by Bluebyte, so I cannot redistribute them with the game. In the future, the game will have a brand new set of graphics but for now those will be enough for testing. You can find a link to the said assets here (extract the contents of the file into your dist/images/ directory). All the other game resources are freely distributed under the GPLv3 license, same as the code.

1. With Docker

$ docker-compose up --build

And point your browser to http://localhost (or even better, add the line below to your /etc/hosts file and browse http://civitas.test.	civitas.test

2. Local

Choose an archive format from below, download and uncompress it. Point your browser to dist/index.html, you don’t need a game server to play.


  • bleeding edge · .zip
  • 0.3 (June 11, 2019) · .zip
  • 0.2 (April 30, 2017) · .zip
  • 0.1 (January 20, 2017) · .zip


Civitas is written by sizeof(cat) and distributed under the GPLv3 license

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <>.


Pull requests are always welcome!

I am always thrilled to receive pull requests, and do my best to process them as fast as possible. Not sure if that typo is worth a pull request? Do it! I will probably appreciate it.

If your pull request is not accepted on the first try, don’t be discouraged! If there’s a problem with the implementation, hopefully you received feedback on what to improve.

Always sign your commits.

Source code

Civitas is written in Javascript, has ~15000 lines of code, ~250Kb minified and can be downloaded from or by using git to clone the repository:

git clone

Civitas is written in Javascript, has ~15000 lines of code, ~250Kb minified and can be downloaded from or by using git to clone the repository:

git clone



The music/track1.mp3 song is named Glandula Pinealis by Shantifax .