This sequel has so little to do with the original that there was no reason to keep the Far Cry name. The plot has no ties, and the gameplay is so far removed it would be difficult to call it anything more than a "spiritual successor." That said, Far Cry 2's gameplay is solid, and it works as both an open world game and a shooter. Its plot is light, but deep, and will make you rethink the way you look at real world conflicts like the ones represented in the game.
As with most sandbox titles, there is a huge amount of content, and there is at least twenty hours of gameplay in the single player alone. There are enough different ways to play that it isn't hard to justify a second playthrough. The game is fantastic, even in this dense holiday season, every gamer should make time for this trip to Africa.