git clone --branch 4.27 https://github.com/EpicGames/UnrealEngine.git
Right-click the target and select Build . Once completed, you can run the engine offline! Unreal Engine 4 Download Offline Installer
While the Epic Games Launcher is the most straightforward method, several scenarios make an offline installer preferable: git clone --branch 4
To download Unreal Engine 4 as an offline installer, you must using GitHub. : To download it, you must log in
: To download it, you must log in to the Epic Games Developer Portal with an account. Under the Epic Tools menu, navigate to Unreal Engine > Downloads and select Unreal Engine Offline Installer from the "Type" dropdown.
If you are a developer with a GitHub account linked to Epic Games, you can download the engine source code as a compressed ZIP file. This acts as a full offline backup, but it requires you to compile the engine from source code yourself using Visual Studio, which is a complex process intended for advanced users.
If you have an existing installation, you can manually move the files and use the Epic Games Launcher to "verify" the files, which skips the large download.