SLADE

SLADE is an open-source map editor for Windows and Linux created and maintained by SlayeR. It is currently at version 1.01.

Features

 * Uses SDL/OpenGL for fast drawing and cross-platform compatibility
 * Some general 'eye-candy' features
 * Colour configurations
 * Skins
 * 3D editing mode (including slopes)
 * Uses GTK for the user interface

The following features are planned for future versions:


 * Improved editing features
 * Support ZDoom's DECORATE lump