 Because of the ability of 3D cell culturing by magnetic levitation to bring cells together, co-culturing different cell types is possible.Co-culturing of different cell types can be achieved at the onset of levitation, by mixing different cell types in before levitation or by magnetically guiding 3D cultures in an invasion assay format.The unique ability to manipulate cells and shape tissue magnetically offers new possibilities for controlled co-culturing and invasion assays.