Massively

If ever there was an industry prone to cannibalism, it would be the games industry. If gamers aren't playing one game, chances are it's because another game has captured their attention with its siren song. According to data by Xfire and reported by Gamesindustry.biz, hours played by subscribers to its service did not pick in October as expected. July and August are typically slow months for PC games, as many players take the rare opportunity to go outside and many also make the move to college during that period. But instead of rising again as the seasons changed, October numbers actually continued to fall. They've chosen to dub this the "Halo 3 effect," as Microsoft's hit shooter sent shock waves not just through the game industry, but through the larger entertainment business as well, reportedly stunting sales of moving ticket sales through that period as well.

Xfire has a subscriber base over 8 million strong, so while they might not be the perfect indicator of larger trends in the game industry, they're certainly one of the best representative samples available. World of Warcraft continued to dominate the overall numbers, with 332,139 hours played during October, beating out perennial PC favorites Call of Duty 2 and Counterstrike: Source. The rest of the MMO crowd ambled behind, with EVE Online being the second most popular massive game, followed by Lord of the Rings Online, Lineage II, and Star Wars Galaxies.

It makes you wonder what would happen if the rumored Halo MMO comes to fruition.