An expensive small 1x1 chest that can hold a near infinite amount of items (65530 slots=33mil iron ores=65 mil iron plates=131mil steel plates). Good for being used as a buffer for ores. If you want a big 6x6 version (~1800 slot storage), look up the warehouse mod

A scenario where you can go underground and dig through rocks. You could find treasure chests, patches of ores... or big caves full of bitters! Credit to original creator Decu

Small little portable nuclear reactor (3x3), good for the first power armor, useful on scenarios with no sun for solar panels