This is a pretty unique game.
In it you create a fleet and send it into battle, but the catch is that you don't control anything once play begins.
Most of the actual interaction you have with the game is tweaking the ships, and you can do it in extreme detail. This is basically where you grit your teeth over.
It has single player, plus multiplayer, but you don't have to be online to have your fleets fight it out.
Game-Pad.net review Gratuitous Space Battles. You can buy the game on Impulse, Steam or direct from the developer at http://positech.co.uk/gratuitousspacebattles/. Make sure to rate and subscribe.