Uh...Everquest has more players than Half Life, eh? Last I heard, they were at around 250,000 max for active accounts a few months ago. Does that beat the 300,000 sample size for Half Life? I think the sample size would be based on unique CD keys to get rid of duplicates. And I would be surprised if the standard configuration of gamers was different for Half Life and Everquest. Starcraft/Diablo (1) compared to Half Life/Everquest would have drastically different results, but Half Life/CS and Everquest are essentially both 3D engines (more or less first person style that dominates the industry of both FPS and MMORPG) with content that appeals to the mass market.