While Electronic Arts dominated the top selling list with Spore and the Sims expansions, Stardock found itself with the 6th best selling PC game title of the year despite the fact that the game has no copy protection whatsoever. Stardock has been a long-time proponent of focusing on increasing sales by rewarding customers with free after release updates instead of using invasive DRM to fight piracy.
Stardock’s Galactic Civilizations series began this trend with Ironclad’s Sins of a Solar Empire continuing it. Sins of a Solar Empire recently saw a massive free update in the form of v1.1 this past November – 9 months after release and its first expansion pack, Entrenchment, just went into public beta.
Stardock’s next PC game, Demigod, developed by Gas Powered Games, has a March target release date and will also include no on disk copy protection.
Source: http://pc.ign.com/articles/936/936933p2.html