Electronic Arts' Origin, for example, is where you'd go to download SimCity and connect to other players. More and more Mac game publishers are hopping on board with support for the platform for their own download services.
You'll also gain experience points, which will entitle you to special discounts on games. The more active you are on their boards - posting reviews, ratings, solving problems for other gamers, and more - the more 'Blue Coins' you'll earn, which will get you discount on future orders. The service is clientless, just like most of the other services we've talked about, but one cool thing about GamersGate is that they have 'gamified' the experience of using their service with a rewards system.
GamersGate is another online service where you can download Mac and PC games alike.
