Just spotted over at Doomworld.com that nicolas monti released his new megawad Eviltech the the public. It's a total of 34 boom compatible maps that vary a lot in style and theme but mostly are themed tech bases with a few exceptions that feel more like the shores of hell, some city themed ones and even some Doom2-inspired tech maps. Overall you will get a nice mix of various stuff that keeps you busy for a while. For my personal opinion, the map set feels a lot like a mix between Doom and Doom 2 with this special '96 feeling - which is actually not a bad thing. Do not expect a lot of fancy new stuff and features but a solid classic experience that's worth playing. Screenshots, information and a download link can be found here.