Good rts with 3-d movement. Doesnt dumb down movement or unit types like Homeworld's 2 & 3. Good successor to Homeworld. Story has 5 difficulties, on average not at difficult as Homeworld campaign. Has cpu skirmish, adjustable diffuculty for all ai. cannot adjust difficulty per ai player. Story is good, a stand alone and do not need to know Homeworld lore for it. I love the ship designs for the most part. Variety of units for diff playstyles, not as many varieties as Honeworld. Great playtime value, before including online (I do not know if there are active servers). This game is the game I became a gamer over. Near and dear to my heart. Was called Homeworld: Cataclysm back then.