I recently got this game and wasn't expecting much, boy was I surprised!  This game is the best of Starcraft, Age Of Empires, and Command and Conquer.  The HUGE selection of units allows for an incredible amount of  gameplay.  With all the units out there you can't defend yourself well  enough because when you defend from sea, air attacks, and vice versa.  Missions are available for those single players out there, as well as a  skirmish mode capable of holding up to 9 AI and yourself.  This game has  extensive internet support and between all of these has an incredible  replay value.  This game is addictive for the serious and the once in  awhile players.  Good for the young and old.  For adults and kids.  Anybody  who wants to have a great time with a strategy game will need this one.  IT'S A MUST HAVE!