I always thought it would be cool if different games could link together. . .
You get shot down in BS, you land and it starts America's Army (or some other shooter), you go to airport to go home, and it starts up MSFS, you land back home and it starts up <insert name of cool driving game>, you drive home and it starts The Sims, go to sleep and it starts up Doom 3 or Diablo.
-T