After entering the game, all you need to do is click back and forth between the two planets - develop resources and sell them to another place, as a way to get more game currency to upgrade. This process will last more than ten minutes. The slow pace is the biggest problem with this game.
The graphics should be not bad for players who like space elements. However, the UI is too low pixelated and a little unresponsive when clicking.
Can't think of a reason to recommend it, but it's really not a very bad game.