No "witty" puns in this headline, and I am sorry for that. I will try to do better next time. I really couldn't figure something out in the two seconds of time I spent thinking about it. Either way, The Dark Mod team announced over at Doom3World that they released their "Alpha Tech Demo" of the mod featuring a small map called "The Thief's Den".
Thief's Den is just a few rooms but it is a complete, fully playable mission, and includes a good selection of the main Dark Mod features. Keep in mind that The Dark Mod is still a work in progress and this is reflected in the demo.