march7,2017update: I'll now have to admit it that I lied in the first paragraph you see here in the "hc0" blog post. It is not hard the map actually, but I said "difficult" because on hard I was struggling to cope with the hordes. My Quake maps overall have a mixed reception as of March 7, 2017 (except for the obscure neg2betahc and maybe hc3), but time will tell as I will make a proper "great" map.
Download it from Quaketastic: http://www.quaketastic.com/files/single_player/maps/hc0.zip
|Screenshot of "Peripheral Fundament" (hc0) running on QuakeSpasm.|
...And at the "Maps" page of Quaddicted: http://www.quaddicted.com/reviews/hc0