Summary: It's a first person shooter and nothing too special about it. Main draw to the game is that there are zombies. Since I've gotten the game, they have added several new maps. Each mission will take up a bit of time as it takes time to get used to the maps.
Summary: Left for Dead is a great game bringing Zombie survival to its best in the realm of Video Game. L4D 2 follows the same logic with new maps (one map is from the original version), new special zombies and slightly better graphics. Any serious gamer should either the first version, this one or both.