One of the most interesting GZDOOM games out there.
If you don't already know about it, just read and download the package from DoomWorld and don't look anything else up, unless you can get lost, then I recommend a spoiler-free walkthrough (some sections are really confusing).
If you don't already know about it, just read and download the package from DoomWorld and don't look anything else up, unless you can get lost, then I recommend a spoiler-free walkthrough (some sections are really confusing).