An interesting mod has popped up by a user going by the name “Lshspain 2020”.
WOLFEMDOM is a feature-rich game built on the engine used for the mod False Spear, and contains 15 levels which appear to be highly detailed and thought out. Much of the graphics are borrowed from other sources, with a list of credits contained in the game’s download.
It is considered NSFW, containing imagery that as the author puts it, contains “intense feeling contents”.
The game runs without the need for another base game, but will require an emulator like DosBox on modern systems.