Half-Life was such a memorable and unforgettable experience for many, for me, for you, for anyone who played it and left with a huge smile of satisfaction on their faces. Naturally, people wanted more of said experience; a sequel was imperative. But Valve, the developer, not exactly known for their punctuality (bluntly speaking, they're worse at keeping time than John Romero), they finally came up with a sequel 6 years later (which was totally, totally worth the wait). That's a lot of years - so many in fact that you need an extra hand to count on - and a lot of the fans were getting impatient.
