I present you the Amiga port of uhexen2 aka Hexen II: Hammer of Thyrion. I've been working on and off this for a couple of years, but with the help of the original maintainer sezero I was finally able to finish it. Keep in mind that this is a very demanding game, so the requirements are closer to Quake 2 than Quake 1. If in doubt, just grab one of the two demo versions to see how it runs.
http://uhexen2.sourceforge.net/
http://sourceforge.net/projects/uhexen2/files/
http://sourceforge.net/projects/uhexen2/