Long term campaign idea

I would like to start a run where there is no one on the planet except the 5 pawns of the tribal start. I removed every factions but there still is creepyjoiners, refugees and injured guys from pod drops.

Is there any way I could remove all of those events ?

Also, are there any mods to make techs interesting in the very long term ? By that I mean slow transitions between eras by adding pre-industrial techs ?

With all of that I'd like to know if there's a mod allowing you to form empires with different settlements and if there is a rebellion mechanic for said empires.

Thanks for reading me !