Team Fortress 2

Team Fortress 2 is a Valve game released with the Orange Box a few years ago. Unlike a lot of FPSes, (cough CoD cough) it's still being continually updated with free DLC. Not just bug fixes, either, maps, content, new weapons, and more. It's a class-based FPS that's one of my favorite games; I've played significantly more of it than almost any other game. There are a few modes: Capture the Flag, which everyone is familiar with, Control Point, where you need to get team members on specific areas to win, Payload, where you and your team members push a bomb through a map, and Arena, where once you die, you stay dead, and the team with alive members at the end wins. All of these are pretty intuitive and fun. There are nine different classes, which each have their own weapons, speed, character model, voice lines, and things they're designed to do. The demoman, for example, has weapons designed to set intricate traps and destroy the buildings of the engineer, who builds sentry guns and ammo-replenishing dispensers. The engineer is also weak to the spy, who disguises as an enemy team member, can disable the engineer's buildings, can turn invisible, and can kill anyone in one hit by stabbing them in the back. The spy, however, can easily be killed by the pyro, who burns everything with his flamethrower. The pyro's pretty bad against the Heavy, a big Russian guy with a lot of health and a very powerful minigun... and you get the idea. All the classes are designed to be good against other classes and bad against different ones, and you'll learn all that if you start the game. This game has been my favorite FPS for a long time, and it's going to stay that way for a long time. The intricate details, character personalities, cheerful cartoon graphics, and complexity all lead to this being a great game. If you don't own this game, get it. If you do own it, play it!