GOG.com is a digital PC & Mac game distribution service--that's a mouthful of words that means that we sell games that you download to your PC or Mac. All of our games are DRM-free, and we bundle in extra content like soundtracks, wallpapers, and other goodies with every game we sell.
Our classic games are all updated and tested to work on Windows 7, 8, XP, Vista, Mac OS X 10.6.8 and higher.
GOG.com: the best classic and new games on Windows, Mac & Linux. A vast selection of titles, DRM-free, with free goodies and 30-day money-back guarantee!
GOG Galaxy user