If you thought all action games were the same, think again. Half-Life's intricate environmental challenges, rich storyline, and frighteningly intelligent adversaries add up to a new kind of challenge - one that demands you use your weapons, and your wits. Monsters don't walk blindly into your gunfire - they're cunning as hell and they want to live as badly as you do. Friendly characters aren't cannon fodder - they're critical to your success. Add 16-bit color, machines you control, and realistic sound effects and you've got a game that is so alive, so intelligent, so real, you'll swear it has a pulse.