A decent game with many annoying parts.
To start off about the levels, What I hate is when you have to go through the sewers that was a total let down. And the vehicle parts they were the worst part about the game at least in half-life 2 ep 2 they were shorter but more fun. Valve had to see if the vehicle parts would work, but they didn't they just were to long and boring. Ravenholm was very boring at first it really set the mood and an erie feeling. At the start is is arggh a zombie shoot it shoot it.
Then it is oh man not another zombie . But it is after Ravenholm that this game gets really good, driving through antlions is a whole heap of fun.
The graphics are very beautiful to look at even for todays standards, but you will be running and gunning through the whole game there is very little time to appreiciate them.
The physics in this game a very realistic. A lot of the time in the game the puzzles require you to use the games physics engine to bypass it and get through to the next part.
Overall what makes this game great is the mods. That is why I gave it a very high rating. Garry's mod is a must get if you have Half-Life 2
you may just get GMOD 9 or buy GMOD 10 for $9.95 Australian dollars.
There are plenty total conversion mods that are online and make this game very enjoyable. This is a must get for most people but for others if your not so sure rent it first. It is best on the PC.