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, conquests and special buildings.
  • Prestige system that affects diplomacy.
  • Each city in the game world (AI or player) 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.
  • Churches and religions.
  • Heroes, unique classes and items, attributes.
  • Server component (for now 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.


1. On my server

Play Civitas!

2. On your computer


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 distribution/images/ directory).

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


v0.5 (January 17, 2022)

  • No major code changes, re-implemented the build pipeline with the latest gulp, removed multiple leftover files and images (GitHub repo is no longer available).
  • Renamed the directories since we're way past DOS 11.3 times and it looks more informative now.
  • The aim is for the next version to be 1.0 because the game is pretty polished as it is and is definitely playable.

Download ZIP archive, 22.3MB

SHA-256 934f3da5d1b371a8fef7cdd73a624467ceb8f8a63beaff092b08b24adc68ea42

v0.4 (December 21, 2020)

  • Implemented the new world map using Perlin noise and two internal maps (elevation and moisture) to create a really unique world.
  • Rewrote most of the code in ES6.
  • Battlegrounds, epic fighting ensues.
  • Tavern, heroes, items.
  • Academy and researching.
  • Settlement AI module (not implemented yet).
  • Debugging window and cheats (useful for testing).
  • Second version of the User Interface.

Not available for download anymore.

v0.3 (June 11, 2019)

  • Migrated to the new settlement background.
  • Re-licensed the code as GPLv3.
  • Church, religions and faith.
  • Embassy, espionage, spies.
  • Caravans.
  • Random world events.
  • Jailer module for game integrity checking (not implemented yet).
  • General encryption, useless for now at this stage, only save-game encryption remains.

Not available for download anymore.

v0.2 (April 30, 2017)

  • New CryptoJS dependency for future save-game encryption or server communication.
  • War system, alliances, camp, castle, shipyard, ships, armies.
  • First version of the User Interface with windows and panels.

Not available for download anymore.

v0.1 (January 20, 2017)

  • Initial release, it's more of a proof-of-concept than a real game.

Not available for download anymore.


Civitas is written by sizeof(cat) and released under the GPLv3.

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

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the 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 <>.



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


Click on the thumbnails for larger images.