I recall a Youtube video of a survival modpack that was in a cave world, all underground, there were tough mobs such as variations of Creeper and no readily available foods. The strategy for surviving early on was to make a shelter inside a wall or something and literally eat cobblestone soup. Oh and there was a terrain stability mod in there for good measure so thin structures could collapse.
I recall a Youtube video of a survival modpack that was in a cave world, all underground, there were tough mobs such as variations of Creeper and no readily available foods. The strategy for surviving early on was to make a shelter inside a wall or something and literally eat cobblestone soup. Oh and there was a terrain stability mod in there for good measure so thin structures could collapse.