: While originally released in 2001, digital versions on Steam and GOG are updated to run on modern Windows versions (7, 8, 10, and 11).
: As of August 2025 and March 2026, reports indicate the game has been available for free to Prime Gaming subscribers via a GOG.com code. Sid Meiers Civilization III Complete Free Download
: A fan-made open-source engine called C7 is currently in development to modernise the Civ 3 experience. Community & Extras : While originally released in 2001, digital versions
