OpenCiv3
OpenCiv3 (formerly known by the codename “C7”) is an open-source, cross-platform, mod-oriented, modernized reimagining of Civilization III by the fan community built with the Godot Engine and C#, with capabilities inspired by the best of the 4X genre and lessons learned from modding Civ3. Our vision is to make Civ3 as it could have been, rebuilt for today’s modders and players: removing arbitary limits, fixing broken features, expanding mod capabilities, and supporting modern graphics and platforms. A game that can go beyond C3C but retain all of its gameplay and content.
OpenCiv3 is under active development and currently in an early pre-alpha state. It is a rudimentary playable game but lacking many mechanics and late-game content, and errors are likely. Keep up with our development for the latest updates and opportunities to contribute!
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NOTE: OpenCiv3 is not affiliated with civfanatics.com, Firaxis Games, BreakAway Games, Hasbro Interactive, Infogrames Interactive, Atari Interactive, or Take-Two Interactive Software. All trademarks are property of their respective owners.
Get OpenCiv3 “Dutch”
December 2025: v0.3 Dutch Preview 1 Has Been Released!
The OpenCiv3 team is pleased to announce the first preview release of the v0.3 “Dutch” milestone. This is a major enhancement over the “Carthage” release, and our debut with standalone mode featuring placeholder graphics without the need for Civ3 media files. A local installation of Civ3 is still recommended for a more polished experience. See the release notes for a full list of new features in each version.
OpenCiv3 Dutch Preview 1 with the same game in Standalone mode (top) and with imported Civ3 graphics (bottom)
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