[Suggestion] Scale how much ore nodes give with how many people are in the prospect
This might feel like it could be abused, but I would rather have this type of system in place than having 2-4 people in a prospect and needing to then mine 2-4x more caves in order to get enough materials. Requiring more caves to be mined out isn't a linear problem as some areas are harder to get to earlier on and makes the difficulty curve for having more or less players really wonky. Of course it doesn't have to be linear but some increase would make getting a lot more ore a lot easier for each prospect.
Have to keep in mind that you will have to do this beginning game loop a lot more than your standard survival game, so having it be a lot of monotonous tasks will be how I most likely stop playing in the future, not anytime soon though :)