What is .FSG file extension?
File created by FreeCol, a turn-based strategy game where players create colonies in America; contains a saved state of the current civilization, including cities, units, and resources; used to save and load game progress.
FreeCol is a clone of Sid Meier's Colonization game.
You can see a list of software programs here on easyfileopener.org that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.