Eureka is a map editor for the classic DOOM games, and a few related games such as Heretic and Hexen. The supported operating systems are: Linux (and other Unices), Windows and OS X.
Eureka is free software under the GNU General Public License (GPL). Please note that it comes with absolutely NO WARRANTY of any kind.
It started when I ported the Yadex editor to a proper GUI toolkit, namely FLTK, and implemented a system for multi-level Undo / Redo. These and other features have required rewriting large potions of the existing code, and adding lots of new code too. Eureka is now an indepedent program with its own workflow and its own quirks :-)
See the Credits page for more information / copyrights.
Getting in Contact
You can contact me at the following email: <email@example.com>
There is also a discussion forum on Eureka's SF project page, as well as a "Tickets" page there for making bug reports or feature suggestions.
The 3D preview: