With WindSim Terrain Editor you can make your own roughness datasets.
GIANTS Software GmbH
Edit and customize map details for the Farming Simulator game.
A terrain editor currently available for SimCity 3000.
Remere's Map Editor is a map editor coded in C++ for the OpenTibia Project.
Trainz Simulator 2009 -Build and operate the railroad of your dreams.
Applied Imagery, LLC
Allows the user the ability to see, edit, understand, exploit, and share 3D data.
It gives its users complete 3D control over what their terrain looks like.
Freeworld3D 2.4 is a fully interactive real-time 3D terrain editor.
EarthSculptor is a realtime terrain height-map editor and paint program.
TerraMaker is a terrain generator and editor for Terragen files.
Terrain Generator allows you to generate terrain for specific games.
FSGenesis Nevada 19m Terrain Mesh for FS2004 is a terrain mesh.
The FSGenesis New Mexico 19m Terrain Mesh for FS2004 is a special terrain pack.
FSGenesis Utah 19m Terrain Mesh is a terrain pack for the Flight Simulator.
FSGenesis Texas 19m Terrain Mesh for FS2004 is a terrain pack.
FSGenesis Mississippi 19m Terrain Mesh for FS2004 is a terrain mesh.
FSGenesis Israel Base Terrain Mesh for FSX tool to visualize Israel terrain.