Could you add an option to change the spoilage rate and asteroid spawn rate that you change under the advanced tab?

This is a good idea. I haven't had much time to play Space Age so it's easy for me to forget things like this, but I will do it today.

I want to change the whole interface to be more like the one the game uses when creating a map, but I keep changing my mind on how to do it, and haven't started that.

Thanks so much! I accidentally changed spoilage to the highest value when starting a new game and so I was frantically looking around for a solution and essentially waiting to go to Gleba for a few days now. You are seriously a lifesaver for this!

It should be available now. If you set the highest value it's a 10, and normal is 1.

Sort of related, it could be handy to put the Technology Price Multiplier from the Advanced tab into the mod, as that's another thing I believe you can normally only set at map creation but people might want to change later.