I have batted around the idea of realistic terrain explorations with a few friends and have a bookmark folder of potentially useful links if we ever decided to

I have batted around the idea of realistic terrain explorations with a few friends and have a bookmark folder of potentially useful links if we ever decided to actually do something about it. Which is to say, I'm not at all a good resource, just someone vaguely interested from the outside. Have you looked at Gaea? There is a community version and it seems like it could be useful for exactly what you describe. https://quadspinner.com/ https://quadspinner.com/