The latest game in Koei's Dynasty Warriors series has gone gold, the company announced today. Dynasty Warriors 4: Empires builds on the basic action gameplay by adding a tactical strategy system. In the new empire mode, players attempt to unify ancient China by selecting which territories to attack. The players can then jump into the trademark frantic tactical action of the Dynasty Warriors series. The $19.99 PlayStation 2 game will ship to North American retailers at the end of August. For more information, check out GameSpot's recent preview of the game.