Games like Wing Commander II: Vengeance of the Kilrathi - Special Operations 1

If you finished Wing Commander II: Vengeance of the Kilrathi - Special Operations 1, the closest matches are Age of Wonders: Planetfall, Planetbase, Star Control: Origins, Ashes of the Singularity and Polaris Sector. All 8 share its simulator genre and are ranked by how closely their themes and modes overlap.