DRM free versions will be available for Mac, PC and Linux. The game will also be made available through Steam, and the IOS App Store, etc.... which definitely have DRM. Title here (and other places) make it sound like it will be DRM free only.
Noryungi writes "The interestingly named 'Topless Robot' has a real trip down memory lane: how the computer graphics of the original Star Wars movie were made. The article points to this YouTube video of a short documentary made by Larry Cuba, the original artist, that explains how he did it. In 1977."