Metallic metamaterials are engineered materials that exhibit unconventional physical and mechanical properties such as low density, high specific strength, and stiffness, attributes highly desirable for a series of engineering applications. Their fabrication techniques have evolved over time with additive manufacturing (AM) specifically powder bed fusion techniques to facilitate the manufacturing of complex geometries with high accuracy. However, major challenges include the high initial and running costs, limited alloys, as well as low building efficiency. Hybrid manufacturing approaches have recently emerged, which combine additive manufacturing and casting. Such methods result in microstructural attributes and effective mechanical properties that well-differ from laser-based processing technologies. The current analysis considers different metamaterial topologies engineered through hybrid casting processes. A thorough investigation of their microstructural properties through Scanning Electron Microscopy and Computer Tomography methods is performed. Moreover, quantitative insights into the effective mechanical performance, static, and impact attributes are provided and compared with the ones obtained for PBF techniques. Distinct elastic and post-elastic characteristics, along with failure modes are identified and comprehensively evaluated. Moreover, insights into the creation of interpenetrating phase composites based on the hybrid casting process are furnished, providing benchmark results on the process-structure-property attributes of hybrid-manufacturing AlSi10Mg-based metamaterials.