(download link below) Hexen project needs volunteers to help with finishing 2 more Hubs, then it would be finished (currently there are 3 hubs finished)

Hexen III: Land of the Serpent Riders
https://www.moddb.com/mods/hexen-iii/...

Video part 2 is here below:
(got lost a bunch and wasn't able to finish without cheats, could be used for bugfixing maps)
   • Hexen 3.0 - Hub2 part2