Spirit in the Wires is a mod for registered Wolfenstein, released on December 26, 2014. It was made by Lok2 and uploaded only on ModDB.
Only two days in the making, the mod found its way into the Wolfenstein community via Andy Nonymous' Ersatz Dome News thread which was prevalent between late 2013 and early 2015 in the absence of The Wolfenstein 3D Dome.
The mod features many graphical changes and a new title screen. 10 levels are featured. Unfortunately the maps are Creator-generated, making for a predictable gameplay.