DeePsea

DeePsea is a Doom level editor and WAD resource manager with support for any DOOM port via custom configuration files. 3D texture alignment uses a variant of the RISEN3D GL port, R3Dedit. R3Dedit is based on a real gaming engine thus provides a realistic view of the level with actual skies, special support as well as optionally showing the placement of all sprites. It was developed by SBsoftware and is a Shareware application. There is no time limit, but the maximum size of levels a user can create is limited to 800 linedefs for the unregistered version. DeePsea's development is ongoing.

DeePsea Features (all PWAD tools are unlimited in the shareware version)

 * Map Editor with 3D texture alignment (supports both line drawing or sector drawing)
 * Extensive level error checking
 * Extensive Lump management tools
 * Create PWADS and IWADS
 * Import/Merge/Export any file (including WADS) with duplicate error checking
 * Direct DOOM format Image Editor
 * Texture Editor
 * Palette Editor
 * Colormap Editor
 * Script Editor/Compiler
 * Sound play back
 * Music play back
 * Automatic regular or GL node generation using DeePBSP
 * Automatic list of all textures used in a level or PWAD
 * Open dialog browser shows the contents of WADS without having to open them

Trivia: almost every feature within the program can be accessed by pressing the F7 key.