Just Cause.
I love how I can take a guy, grapple him to a passing helicopter and watch him fly away. That is why Just Cause is on my Top 5 Favorite games list. Plus GrappleChuting is fun.
Yeah you can do that until you complete everything there is to possibly do. If I had it on PC my story would change, but I dont. :IThe only true way to play Skyrim is to blow off every regular quest and do whatever you want.