Want Duke Nukem 3D for free? Head over to GOG.com and pick it up. Once you’ve got the base game, you can also visit this GOG forum thread to download a bunch of fan-developed mods to spice it up, including a high-resolution mod.
Meanwhile, the rest of GOG.com is running a holiday sale. Check out their front page for more details, but a few of the highlights include Icewind Dale Neverwinter Nights and Planescape Torment for $4.99 each.
Also available are Dreamfall: The Longest Journey for $7.49, Theme Hospital for $2.99 and Vampire: The Masquerade – Redemption for $2.99, among other deals.