UE4 built from source takes 170GB disk space

[AActor_424]

I also built UE 5.3.2 from source and my total disk usage of the built engine is ~ 300GB although I excluded any platform target (except Win64) I dont plan to use with the -exclude= option.

Seems we have to deal with it or remove plugins we dont want to use.

I also read you can delete the intermediate folder. But if you change something in the engine source files, you need to recompil it again from scratch.

Here is the link to this info:

After building unreal engine from source, the folder is now 168GB. What can i delete?

I just delete Vault Cache, but it helps only if there are some imported materials, etc.

And here is another interesting link, similar to the one above:

Building Unreal Engine from Source = huge file size

Hi zbuffer14, Something you could try would be to delete the Engine/Intermediate folder after having built the Engine. The next time you open the Editor, it will take a little longer than usual as it rebuilds the parts of this folder that it needs. However, once that is done, you will have a much smaller folder and overall Engine size. Not quite the same size as the Binary Engine, but it will be significantly smaller than it was. Keep in mind that if you do delete the Engine’s Intermediate fol…