Yeah, I will do that for future games. But in this case, I had assumed the grey tempest would come much later... my spawn year was about 2300. So I had spent hours and hours on this game and I wasn't ready to give it up to an early grey goo spawn that wrecked all my hard work. So next time yes.Couldn't you just edit the event itself via mod to disable the Grey Tempest as a possible outcome? I feel like that would be easier than messing with the save file every game.