Cobra Games products are intended as scenery or props used together with other RPG's or Tabletop games and are not stand alone gaming systems.
Space Grid provides the tools for space combat in a tactical Hex grid formation, Planet Grid gives players the option to continue their battle once their ships reached a planet and our Combat Tiles takes that combat further with scenery for ground units once their ships reached their destination.
All this combined gives the player the choice when and where the battle occurs.