Source: HalfLife2.net

Eurogamer has put online it's Top 50 of the games of 2004 and Half-Life 2 made it to the number 1 position:

Thank gawd we can stop talking about what Half Life 2 might be like and actually reflect that it was a 'bit good' after all. I gave it a ten, which is as rare as a quiet day in Central London, if only for the fact that even the bits that had me stuck had me furiously trying again, desperate to get to the next section and to see what else Valve had up its sleeve. After 24 hours of HL2 in the space of 36 hours, you could say I was a bit drained by the end of it, but it's was worth the extraordinary lengths. Now all we want is a few expansion packs and their work is done.

You can check out the numbers 10 to 1 here.