An open source implementation of Sid Meier's Civilization

Latest news

6 December 2017

I have posted a new preview build (r1300), which improves save game compatibility with the original game a lot.

Other features include City Corruption and experimental support for variable map sizes (ranging from 40x25 to 160x100).

5 December 2017

I have changed the website domain to, because it seemed .org is more appropriate for an open-source project. The website is still available through the old .com domain name.

The website backend has also received an update, and I've split the download page into seperate pages for the Windows, Linux and macOS versions. There's going more updates to the website in the coming weeks, including an official plugin database and GitHub integration. Keep checking the website.

Finally, about the game: I'm going to try and post a new build of CivOne tomorrow.

26 November 2017

The past week, I've a lot of work on rewriting load save games. The games loaded and saved by CivOne should be a bit more compatible with the original game. Currently, only about 50% of the save game fields have been implemented so not everything is working, but we're getting there.

A new version is available on the Dowloads page.

19 November 2017

I've created a new version again. I'm going to enable auto build from GitHub soon, so nightly builds can be placed on the website automatically.

Just for fun, I tried running CivOne on my Raspberry Pi 3 (running Raspbian) today and it worked. Bit laggy, but that was to be expected. I might start releasing ARM builds too.

18 November 2017

I have added a Linux (x64) build of CivOne to the Downloads page.

To use it, simply unzip and run. If you run into any problems, please create an issue on GitHub or contact me on the CivFanatics forums.

17 November 2017

The 32-bit issue has been resolved. I've created a new release which is available on the downloads page.

16 November 2017

Hello there, long time no see. I've been busy.

The latest news is that I have switched from OpenTK to SDL (which, I think, is the more logical choice for a 2D game).

Today, I have created a new build (r1226). For now it is 64-bit only because the 32-bit version crashes upon launch. It is available in the Downloads section of the website.

8 August 2017

I have created a new preview build of CivOne. This new version includes a lot of changes and improvements, one of them being support for plugins.

As a sample, I have created a new GitHub project called CivOne-Plugins. The first plugin (Better Menus) has also been added to the new plugins section on this website.

To read the changelog and discuss the game, I'd like to refer you to the CivFanatics forum thread.

19 July 2017

Although it is not yet finished, I've been working on a new web design and a completely new web backend. I wanted to show off the new design, I hope you like it.

The interactive parts of the website will be rolled out over the coming weeks.

24 February 2017

The project is still very much active. The website, not so much.

I have recently switched the project from .NET 4.0 to .NET Core, with OpenTK for graphics. That is a huge performance boost.

Version 0.1.0-alpha.1 is getting closer... if you want to stay up to date, it's best to view the CivFanatics forum thread.

If you like to get involved in the development of CivOne, please visit the GitHub page.

6 October 2016

With the upcoming release of version 0.1.0-alpha.1, I decided to start working on a new website layout.

I will continue working on the website, this is not the final design.

Please, feel free to comment on the new website design in the CivFanatics forum thread.