I have owned Empire at War for several years, and only recently did I decide to buy the expansion. It was well worth it! It adds a lot of new content to the game, and some of the new units and heroes are remarkable. It provided me with hours of gameplay, plus a lot more form the galactic conquest and skirmish features. If you thought that Empire at War was good, you'll love this! It runs fine on my PC, which isn't exactly state of the art either.