Extremely fun online co-op. Nothing beats hearing some random guy you met online scream bloody murder and then run out of a room with some demon chasing him. Incredibly immersive single player ...

One of my favourite games in 2004. Just beauitful graphics and sound. Gameplay was simple, true, but i was too busy drooling to be bored. HL2 didn't blow me away graphically. Weird poppy lighting ...