@Rasterman @coded_artist @Hoss @rebootbrain @Nudhul they can be super effective and cheap and I slightly mispoke, that's just a general term I meant and it would've been better to say a prepper/doomsday off the grid bunker. But they can be very good housing but I have to do it your self or pay 100's of $1'000's to have it prefabbed they usually ad really cool shit like water filters and rocket stove heaters and other really nifty stuff but that's mountain men like me or people with enough money to have it built and maintaining it is a nightmare if u don't do it all yourself