3D Ground is a QUAKE 2 map generator for fast and easy generation of irregular
floors, walls and ceilings.

You can use a 256 grey scale image as a heightfield to define the vertical map
coordinates. After playing with some parameters just save the QUAKE 2 map to
add it to your level or use it as a prefab.

The program is freeware and runs under Windows 95/NT 4.0.