It will be tedious. The idea of a space more dynamic. Near the fish pond you sit and do nothing. Just wait until the fish grow. Well, or monotonically feed them. Boring. When you fly in space and look for anything that will be fun. And the war will add a dynamic to the game.
Well, but the first time space game will not be very interactive. It will be like a browser game without 3d realtime battles.
To make a big and serious game I should hire some 3d artists and programmers, and I cannot stay anonymously in this case.
Then maybe you should not think about the game, and about the service for earnings in the Internet. In third world countries there are many who want to have an income on the Internet. If you will provide them work and will from this have your interest, perhaps you will earn more? Think about it.