Imperium Galactica II: Alliances
Sci-fi real-time strategy | Managing colonies, expand empire, conquering planets, research, diplomacy with other races, spy, space and ground battles, … | Single player and Multiplayer | Digital Reality | 1999.
Take in count the technology the enemy has and yours before entering a battle. Search and colonize planets and auto-build them to Technological, Trade, Spy Centres and Production. Spies are very useful, if you play with the Shinari Republic faction.