I understand your frustration.
But, I have to agree with the others on this. Losing to circumstances which are out of your control is part of what makes RimWorld such an amazing experience. I always end up having more fun with losing in different ways than I have with winning in this game (*cough* victory conditions are limited *cough*)
Anyways, there are ways to completely prevent this from happening ever again. They just require you to remove content from the game. Mods. You can mod sappers out of the picture, if you really wanted to. I wouldn't recommend it, but if it suits your playstyle, I say go for it
But, I have to agree with the others on this. Losing to circumstances which are out of your control is part of what makes RimWorld such an amazing experience. I always end up having more fun with losing in different ways than I have with winning in this game (*cough* victory conditions are limited *cough*)
Anyways, there are ways to completely prevent this from happening ever again. They just require you to remove content from the game. Mods. You can mod sappers out of the picture, if you really wanted to. I wouldn't recommend it, but if it suits your playstyle, I say go for it