id Software, take note. Duke Nukem 3D is available for free at http://www.gog.com/gamecard/duke_nukem_3d_atomic_edition for limited time. It is DRM free and you get a simple direct download. Just need to register. Duke3D is awesome and well worth playing in 2012. It is much more dynamic than Quake. I finally played through it earlier this year and was really impressed by the level design. Have fun and cherish DRM-free games.