Games like Endless Space 2: Definitive Edition

If you finished Endless Space 2: Definitive Edition, the closest matches are Warhammer 40,000: Gladius - Relics of War, Warhammer 40,000: Sanctus Reach, Interstellar Space: Genesis, Project Planet: Earth Vs. Humanity and MegaMek. All 10 share its strategy genre and are ranked by how closely their themes and modes overlap.