Hey this is interesting. Did you write the rendering code in Delphi too?
Did a bit of search, is it QuARK?
Did a bit of search, is it QuARK?
It is not QuArK, though AFAIK QuArK was made in Delphi too. There have been a few other Quake editors made in Delphi, like the qED Quake Editor which was one of the earlier Quake editors (the author wrote a book about quake mapping too[2]).
[0] http://runtimeterror.com/tech/dglvp/
[1] http://runtimeterror.com/tech/bcbgl/
[2] https://archive.org/details/unofficial-quake-level-design-ha...
I believe the community is still thriving.