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MSFS24 underground hangar in the ground

M

marcopolo85

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1
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switzerland
Hi everyone,
Is there any way to create underground structures like caves and tunnels in the terrain? I want to build an underground hangar with various connecting tunnels.
ChatGPT says you have to create a hole in the terrain-surface (transparent material?), which can then serve as an entrance. The hangar and the connecting tunnels can be created using Blender.
Does anyone have experience with this and can give me tips on the best way to approach it?
Does anyone know of similar projects?
Thank you very much

Screenshot 2026-04-01 171142.png
Screenshot 2026-04-01 170646.png
 
Last edited:
marcopolo85 said:
Hi everyone,
Is there any way to create underground structures like caves and tunnels in the terrain? I want to build an underground hangar with various connecting tunnels.
ChatGPT says you have to create a hole in the terrain-surface (transparent material?), which can then serve as an entrance. The hangar and the connecting tunnels can be created using Blender.
Does anyone have experience with this and can give me tips on the best way to approach it?
Does anyone know of similar projects?
Thank you very much

View attachment 99517View attachment 99516
Click to expand...
ChatGpt is wrong.

The only material that could remove terrain would be the Environment Occluder, but that will remove only grass/trees and such

The only way to create a underground base is to terraform (rectangle, polygons whatever method you prefer)
And then cover everything back with a 3d model resembling what you have removed
The only problem is that you can't grow grass or trees on the new 3d model
So you have to place grass and trees manually on top of it using Scenery objects
Using faketerrain material for the upper part for the exposed part of the mountain might help to mitigate the "fake" look of the 3d model/proper terrain

Tldr: the way the terrain is built in msfs doesn't allow it to be playable "underground", real tunnels are not possible,.but fake one are
 
Hi everyone, I don't want to start a new thread because I have almost the same question. I'll ask here. I'm making a military hangar, but it "falls down into a hole" when compiling.
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