Games like Command & Conquer: Red Alert, Counterstrike and The Aftermath

If you finished Command & Conquer: Red Alert, Counterstrike and The Aftermath, the closest matches are Mayday: Conflict Earth, Maelstrom: The Battle for Earth Begins, Dark Reign: The Future of War, Children of a Dead Earth and SunAge. All 10 share its real time strategy (rts) genre and are ranked by how closely their themes and modes overlap.