of the more notable events of the decade, Valve was hit particularly hard by a hacker and subsequently had much of their work on Half-Life 2 leaked onto the internet. Sony and Microsoft released their PlayStation 3 and Xbox 360 consoles in the mid-decade. As the decade progressed, more and more features were added to consoles. Internet connectivity became ubiquitous and some games integrated the use of webcam accessories. In the mid-decade, the industry was caught in the crossfire of the HD DVD and Blu-ray format war. Ultimately, the Blu-ray format won out, but that didn't help Microsoft after they have already made HD DVD compatibility a feature. Nintendo had still yet to release a system compatible for viewing films. Instead, Nintendo unveiled the Wii and revolutionized the industry with the interactive gameplay that its brand new controller provided. It would not be until the next decade that Sony or Microsoft would release a similar motion controller to the Wii as an accessory (See: Kinect and PlayStation Move). Graphic innovation The 1990s decade oversaw the transition from 2D-based video games to fully immersive three-dimensional environments and gameplay. The 2000s continued on this trend by polishing many of the flaws of creating a new dimension for games such as rigid polygon characters and animations. By the decades end, Microsoft and Sony had already been releasing games in high definition. Status of PC video games PC video games remained popular throughout the decade, but was in an overall decline as consoles became more and more popular. Publishers also liked the standardization that consoles provided, whereas PC game performance was dependent on the graphic capabilities of a player's hardware. Nevertheless, the PC remained the device of choice for many popular strategy, simulation, and online games. Blizzard was a company in the spotlight on numerous occasions throughout the 2000s and loyal to the PC. In 2000, it released the hack and slash game Diablo II which is frequently listed as one of the best games ever made. The game continues to have a wide following many years after its release and was listed on NPD Group's top ten PC games sales list as recently as 2010. Then in 2004, Blizzard wowed gamers with the release of World of Warcraft, which was the world's most-subscribed MMORPG at the time with over 10 million subscribers. The Sims, a spin-off project of the popular Sim City franchise,