It isn't every day that a game will revolutionize a genre but when Homeworld was released, that's exactly what happened. Concepts like introducing a useable Z-axis in addition to great gameplay, graphic, and audio all helped to create a solid and unique experience. Since then however, few have come close to the success of Homeworld with maybe the exception of Hegemonia: Legions of Iron so expectations are rather high that Homeworld 2 will once again deliver a ground breaking performance.
For better or worse however, Homeworld 2 wasn't designed to be ground breaking but to build off the same mold that brought Homeworld its initial success. That isn't to say that different areas weren't overhauled' significant improvements can be found throughout the game. The interface for instance is considerably easier to use and allows for simpler unit movement and tracking, while the graphics offer appreciably more detail even raising PC requirements to higher end units. The first Homeworld also tended to take much longer to finish missions then should have been required. Waiting for units to get to a battle location created problems with game flow that has been resolved in Homeworld 2.
The core of the gameplay still follows the original Homeworld model with a three-dimensional view allowing the ability to rotate the camera to any possible angle. The general objective is also similar as the mothership is once again threatened but instead of trying to reach their home world, this time they are trying to protect it. By collecting resources and strategically building new modules and ships, you'll have to defend and push back this new threat requiring more then sheer numbers.
Although Homeworld 2 won't leave quite the mark its predecessor did, the quality of the game still stands out. With an improved interface, graphics, and other gameplay issues you'll once again find yourself immersed trying to defend the Mothership and the home world.