Homeworld Cataclysm save files are located within your Homeworld Cataclysm directory. Single player saves will be in the following folder:
Note – […] represents the location of your installation directory – likely something like C:\Program Files.
For those of you that want to pick up where you previously left off rather than starting the game from scratch, I’ve posted my save files below. These are just the autosaves at the start of each mission. Keep in mind you will need to have the 1.01 patch installed. You’ll have the ships I was using, but it shouldn’t matter too much, some of the missions make it almost impossible not to lose most of your fleet. Enjoy
To use these saves files just extract this zip file into your save file directory and start up your game.