The following is a list of sci-fi themed Wolf3D mods. They often feature a setting about the future or planets being ruled by killer robots and dangerous lasers growing everywhere. Some mods may blur the lines and delve into horror themes and scenery.
The high number of mods might be caused by Wolf's cousins (Corridor 7, Blake Stone and Doom) and sci-fi shooter being generally popular at that time. Quality ranges from exceptional futuristic like Absence to questioning oneself if people need a time machine because the future could be as hopeless as Technostein SSD.
In general those mods are for the people who wanted to be astronauts as kids but all they had were pixels. Now it's possible to travel space and beyond in full pixel glory. Beam 'em up, Scotty!