Half-life 2 has become a classic for me, Ravenholm was one of the few places in any game anywhere that has ever truly freaked me the hell out. The setting for the game simply can't be cooler, a Dystopia run by alien overlords after they conquered the planet in under 7 hours.
The very first level I think added so much atmosphere to the game for me, hearing the various cycled speeches while being filtered through a train station into City 17 by Combine soldiers was just a really fun experience.
The physics added to the HL2 Source engine I believe were ground breaking for their time, and continue to get heavy use in any Modification built on this game.
9/10
9/10