It would be impossible to take about stellar open-world games without mentioning the behemoth that is Grand Theft Auto 5 . Rockstar Games truly went above and beyond in ensuring that this game served as a near-perfect evolution of the Grand Theft Auto form Fallout 4 continues to rank as the most popular in the series, and it's easy to see why. A good story, excellent world map, and a host of DLC and user-created mod content continue to elongate the game's lifespan well past its prime, with no si...