Ruins

 are ruined buildings and other locations from the Old World that can be explored for useful items such as raw crafting materials and loot.

Unlike in, features three types of ruins: "There will be three types of dungeons in Sandrock. The Abandoned Ruins are dungeons without enemies, and you can dig safely through voxel terrain to find minerals and relics. The Hazardous Ruins are dungeons that are still classified as dangerous; they’re filled with enemies leftover from an earlier age, as well as some platforming challenges. Finally, we have the all-new Half-Explored Ruins, where there are spots to dig through as well as enemies to fight."

- Kickstarter description