Articles related to the Lethe patch.
“The Lethe patch is a patch for NetHack 3.3.1 by Michael Clarke. It adds several new monsters...Lethe patch
“The Lethe Gorge is a dungeon branch exclusive to the Lethe patch, located between the Dungeons...Lethe Gorge
“This is a description of the new Gehennom created for the Lethe patch. Asmodeus' lair is located...Gehennom (Lethe patch)