Here's a simple and easy to implement feature I would like to see in the final game: accumulated game time.
I would just like to know how much of my life i wasted playing the game when it's over 
I imagine this stat would be shown next to saved game files, on the game victory summary, and on the "high score" list in addition to the information about what race way played, galaxy size, etc.
Implementation details: you need to check for interactivity and stop the clock after some time if there is no mouse movement, activity, button clicks, or other UI events.
