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. Since this is a real gaming engine, a realistic view of the level is provide with actual skies, special actions 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.

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