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I've been building a level editor for Quake 3 that runs entirely in the browser: Radiant-style layout, brush and patch editing, CSG, terrain sculpting, and entity editing. It opens and saves .map file and you can play the maps you build directly in the browser using a webassembly build of ioquake3.

Discussion (8 Comments)Read Original on HackerNews
If you haven’t already, Fabien’s write ups of the various ID engines are a joy to read: https://fabiensanglard.net/quake3/index.php
Shameless plug: I also like to play around with old game engines: https://github.com/bishopdynamics/Continuum
I remember asking someone who worked at my high school for a map of the school and remember thinking it would be fun to recreate the school... in quake... and probably model my least favorite teacher as a monster I could chase...
it's somewhat scary to think back about this - especially since Columbine happened the same year. there was no risk from me (absolutely no way or interest to access guns - we were teenage dweebs in a country with strict gun laws) but thinking back I'm glad I never finished my maps or shared them.
[0] https://www.macintoshrepository.org/6370-quiver-1-2-quake-ed...