Fallout: New Vegas

Damn, this game is downright amazing. Aside from the occasional bug/glitch, it's a great game. You got memorable characters, a fun arsenal of weapons, and you get the occasional funny moment. This is indeed a game you can mess around on, just make sure you don't do it at the beginning of the game e_o The game revolves around choices you make. Not like the Walking Dead though. Just make sure you don't become enemies with too many factions. You'll regret it.

Never played it.