Just Cause 2
I realize that Just Cause 2 and Far Cry 3 are very similar, so you might be surprised to see this here, but the grappling weapon in Just Cause to is a f**king marvel. There is just an INSANE amount of stuff to do in this game, using your grappling hook and parachute combo. I mean, right now, in YouTube, all you need to do is type in “Just Cause 2 stunts” just to simply get an idea of what you can do in that game. Here, like this for example:
Did you take all that in? And the most insane part is, that is just a bunch of gamers, making up stupid shit on their own. Just Cause 2 is about blah blah island blah liberate yadda yadda and so on. The catch here is the aforementioned grapple/parachute combo, which opens this game up in ways only engineers and adrenaline junkies could truly love. Plus, the game has an absolutely amazing scope and size, with every kind of topography perfectly represented. And as if I needed anything else to end this with, search the game long enough, and you can find the island from Lost, hatch and all.
That alone earns its spot here.