Dark Reign Redux, a remake of 1997's Dark Reign: The Future of War, a real-time strategy game for PC, was just published on the Xbox Live Indie Games channel yesterday, without Activision so much as stapling a flyer to a telephone pole for its marketing.
Dark Reign Redux costs $US5 (400 Microsoft Points) and was developed by Magnetar Games, which is also handling a browser-based version. This version supports two to eight players, either online or through system link. Everything else appears to be a faithful port of the original game. Armless Octopus assures us that it runs at 1024x768 resolution and has widescreen support, so it's not totally kicking it old-school.
This isn't Activision's only foray into indie territory, of course. It also runs the Activision Independent Games Competition, whose submission period just closed.