Berthier is free software that manages wargames campaigns for miniatures.
A New Releases of the Free Berthier Campaign Manager Software (Version 10.8.1) Is Now Available!
I have added a new tool to Berthier – a random tabletop generator. The Tabletop Generator tool generates random wargame tabletops, showing the terrain to be placed on the tabletop. You can use this tool to generate a tabletop when you desire to wargame out a contact. The tool is configurable. Instructions to do this are described in the Help.
The download is at The Berthier Home Page.