Blizzard and Valve are two pure-player in the digital distribution of video games through their online store which offers to players the opportunity to buy their games directly via the internet. While Valve through its Steam platform offers its own games as well as those from other publishers, Blizzard via its Battle.net web site allow to buy and download games created by Blizzard itself, such as Diablo III or World of Warcraft, the famous MMORPG (Massively Multiplayer Role Playing Game) which you must pay a monthly fee to play it (personal opinion: it’s pure scam, you buy the game (or get it for free) but you pay monthly to play).
We cannot say that game publishers like a lot Windows 8. With this new version of Windows, Microsoft expects to reproduce the same economic model than Apple. With an App Store dedicated to his home made operating system Windows, Microsoft allow developers to sell their apps at a price ranging from 1$ to 999$. Each app will be offered with a free trial period of 7 days at the opposite to the Apple’s Mac App Store and the iOS App Store which does not offer this possibility.
Valve and Blizzard, we can see it, are trying to diversify their distribution platforms, while the two are creating games for both Apple’s Mac OS X and Microsoft Windows operating systems. On the other side, oddly, none of those company are distributing their games on the Apple Mac App Store, preferring their own digital storefront to preserve their sales margin from the 30% that Apple take on each sale of apps on its Mac App Store.
While they do not offer their game on the Apple App Store and perhaps later not on the Microsoft Store, does not prevent Valve and Blizzard to create successful games. Last year Valve’s released "Portal 2" for Mac and the same year Blizzard announced "Diablo III". On next August 21, Valve will release "Counter-Strike: Global Offensive". Blizzard, has announced for this year a new expansion pack "World of Warcraf: Mist of Pandaria" for Mac scheduled for next September 25.
Valve is already looking to distribute its games on Linux in addition to Windows and Mac. According to its founder, "top PC manufacturers will be left behind because their margins will melt like butter in sun" with the arrival of Windows 8. There is no doubt that Microsoft's decision to release a tablet operating system, windows 8, will not have lots of positive impacts on its long-time partners.