Compatibility between DOOM and Duke Nukem 3D
The level editor of Duke Nukem 3D (Build) can be use to create level
for DOOM or DOOM-II (I don't know for others versions), because it is quiet
the same 3D engine, but you can't use all the commands (exemple: in doom
you can't incline the floor or the ceiling), but there is no big differences.
You can also find on the web some programs to change DOOM maps to Duke
Nukem 3D maps (It is impossible in the other way).
But the format of map of Duke Nukem 3D or DOOM is not at all the same as others 3D engine like Quake, Duke Nukem ForEver (the same 3D engine as Unreal), Unreal, or PREY (must be comercialised at end of 99).