Cleaning Your Project

When opening a game project, UE4 will generate a bunch of files and folders that you might not be immediately familiar with. These are: .vs Binaries DerivedDataCache Intermediate Plugins/*/Intermediate (any Intermediate folder inside a plugin) Saved ProjectName.sln (only if your project has a c++ code in it)

Given that these files and folders are generated, they can be deleted at any time and they are not necessary to keep when archiving or moving the project, same for source control, but that should already be taken care of by the ignore list. The Binary folder inside of plugins should not be deleted as they might contain prebuilt dll which source isn't distributed with the plugin.