An open-world sandbox RPG. Play how you like. No two experiences....too much alike!
Bored with that? Let's play a round of keep Veronica alive in a crowd of Deathclaws. You say you already did that in Fallout 3? Well, did you do it while high on 'turbo'? That's the drug that slows everything down to bullet-time and you don't need a mod to get it.
But it's not just about drugs, folks. Managing your actions' effects on relationships factors in to the game, too. In most games, if you thoughtlessly raid a camp's materials to help another camp somewhere else than whatever drives the main story forward is what will take place. In this game, former friends will start to turn on you if you just mindlessly do what you are asked because helping one group might turn the last group that you were helping against you.
To help get the Strip going again I (minor spoiler alert) helped a brothel recruit some, let's say, talent. Apparently the National California Republic didn't like my big pimpin' ways and for a while I couldn't summon a NCR rifleman (errr...rifleperson) with my pipboy.
Okay. So, we covered drugs. We covered prosititution. What else? Oh, yeah! Violence! This game has lots and lots of violence! So what are you waiting for?
Fallout New Vegas is currently my favorite game. Go get it!