I had an idea for an RTS that I am suddenly trying to make. Here goes:
There are corporations which compete violently for resources on distant planets as interstellar expansion has exhausted nearby resources. The different corporations independently run their own military and govern themselves far beyond the reach of the federation.
The game would be predominantly multiplayer, although it might feature some kind of story at some point in the development process. Instead of just building structures, the players would build a custom base (piece by piece, grid square by grid square, wall by wall, and so on) and then place structures within. They don't have to plan on the go, of course; before the match begins, there would be a period of time for the player to lay out their floor plan in a designated zone of the map. There are three basic tiers of units: colonists, troopers, and elites. There would be different classes for each tier, and different corporations would have different specifics that affected their play style. Resources are not mined directly for use-they're shipped off-planet and converted to funds. By the same token, units and structures would be shipped to the base, along with the different supplies. Different weapons would exist for each class, changing their abilities without changing their role completely. The player would train units by the squad instead of the individual, though, so different weapons wouldn't require excessive micro-managing. Vehicles would have different weapons as well.
The maps would mostly be resource rich, but resources wouldn't be as easy to get to.
Thoughts and feedback would be appreciated.