The short answer
Usually, after a check. Might hold something you care about. Look inside before removing it.
What is it?
The Epic Games Launcher installs each Unreal Engine version in /Users/Shared/Epic Games as a UE_<version> folder. Each installed engine is typically 30–60 GB, more with extra platforms or debug symbols.
Each installed engine is 30-60 GB. Keep the versions your projects use; others can be installed again from the launcher.
What happens if you delete it?
A removed version can be installed again from the Epic Games Launcher, which downloads it again. Projects that need it cannot open until it is reinstalled.
How to remove it properly
In the Epic Games Launcher, open Unreal Engine › Library, click the arrow on the version’s tile and choose Remove. This keeps the launcher’s list of installed engines correct.
From the app itself: Epic Games Launcher > Unreal Engine > Library: open the version's menu and choose Remove.
Before you delete it
Keep the versions your projects are built with; opening a project in a different version may convert it.
How MoreRoom helps
MoreRoom recognises this item and labels it “Review first”: it shows what’s inside, its size and last use, so you can decide. Nothing is removed without your say, and everything goes to the Trash first, with Undo.
Frequently asked questions
Is it safe to delete Unreal Engine versions in /Users/Shared?
Usually, after a check. Might hold something you care about. Look inside before removing it. A removed version can be installed again from the Epic Games Launcher, which downloads it again. Projects that need it cannot open until it is reinstalled.
Will Unreal Engine versions come back after I delete it?
Yes. A removed version can be installed again from the Epic Games Launcher, which downloads it again. Projects that need it cannot open until it is reinstalled.
How do I remove Unreal Engine versions properly?
In the Epic Games Launcher, open Unreal Engine › Library, click the arrow on the version’s tile and choose Remove. This keeps the launcher’s list of installed engines correct.