Half-Life 2: 1998: Half-Life sends a shock through the game industry with its combination of pounding action and continuous, immersive storytelling. Valve's debut title wins more than 50 game-of-the-year awards on its way to being named "Best PC Game Ever" by PC Gamer, and launches a franchise with more than eight million retail units sold worldwide. Now: Half-Life 2. By taking the suspense, challenge and visceral charge of the original, and adding startling new realism and responsiveness, Half-Life 2 opens the door to a world where the player's presence affects everything around him, from the physical environment to the behaviors -- even the emotions -- of both friends and enemies. The player again picks up the crowbar of research scientist Gordon Freeman, who finds himself on an alien-infested Earth being picked to the bone, its resources depleted, its populace dwindling. Freeman is thrust into the unenviable role of rescuing the world from the wrong he unleashed back at Black Mesa. And a lot of people -- people he cares about -- are counting on him. xboxcheat-codeshalf-life

Cheat Codes Spawn medpak: Press Up, Up, Down, Down, Left, Right, Left, Right, B, A during game play to spawn a medpak that will restore 25 points of health. Reload ammo for current weapon: Press Y, B, A, X, White, Y, X, A, B, White during game play. Unlocks all chapters: Press Left, Left, Left, Left, Black, Right, Right, Right, Right, White during game play.