Gordon Freeman has returned. Strap on your HEV suit and grab a crowbar, its time to dole out some pain to the alien force known only as The Combine. The world of Half-Life 2 is incredibly lifelike, including realistic physics and super intelligent enemies. The game isn't just about shooting the bad guy, there are puzzles, vehicles, and hidden items crammed into 14 levels of combat. Our guide keeps you alive and kicking with basics, weapons info and a full walkthrough.

Get the Half-Life 2 Online Strategy Guide.

While playing, simply input UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, RED, GREEN. Click for screenshot.

Submitted by Hellraiser
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While playing, simply input YELLOW, RED, GREEN, BLUE, WHITE, YELLOW, BLUE, GREEN, RED, WHITE. This will refill ammo for the currently equipped weapon.

Submitted by nathanthekiller
Verified by sng-ign