Games like Dai-3-ji Super Robot Taisen Z: Tengoku-hen

If you finished Dai-3-ji Super Robot Taisen Z: Tengoku-hen, the closest matches are Age of Wonders: Planetfall, Planetbase, Star Control: Origins, Distant Worlds: Universe and Ashes of the Singularity. All 8 share its strategy genre and are ranked by how closely their themes and modes overlap.