CaveMC is a semi anarchy survival server with an enhanced vanilla feel and it is built around one big twist. The whole overworld is underground so there is no surface at all. It is just caves biomes resources and structures everywhere.
Season 2 is out and it is a fresh start with a bunch of additions. The server says survival is brutal and you have to be smart to last.
There is also a big expansion called the Wasteland Dimension. It adds new gear to fight over plus huge structures with secrets and resources. It also brings its own currency so players can trade and build a new economy. There is a new spawn too and the dimension uses a custom generated map with special features.
