Hi Rusbaron,
So you want something that is randomly, or semi-randomly, created for you each time you run the game? I do not believe you can do this currently with the built-in Landscape tool. However, if you want something that has a more blocky Minecraft appearance, you could certainly write some code or use a Blueprint to have it procedurally create a level for you whenever you play the game. You would need a cube mesh and a few materials for that mesh so that they don’t all look the same, then have your code (or Blueprint) randomly place a number of those meshes when the game begins. I have not personally done much research on procedural generation of levels, but I know there are a few threads on the forums discussing procedurally generating levels at runtime.