Introduction ============ Eureka is a map editor for the classic DOOM games, and a few related games such as Heretic and Hexen. It supports Linux, Windows and OS X. Eureka was created by Andrew Apted and lives at http://eureka-editor.sourceforge.net This manual was written by Wesley Werner. If you find a mistake in this manual `please report it here `_. If you want to contribute, `fork the repo `_ and send a pull request. There is also a `downloadable PDF version of this manual `_, and a printable `cheat sheet `_. License ^^^^^^^ This manual is licensed under a `Creative Commons Attribution-ShareAlike 4.0 International License `_.