If you liked this
Games like Imperium Galactica II: Alliances
If you finished Imperium Galactica II: Alliances, the closest matches are Stellaris, Age of Wonders: Planetfall, Planetbase, Distant Worlds: Universe and Warhammer 40,000: Gladius - Relics of War. All 12 share its strategy genre and are ranked by how closely their themes and modes overlap.
