If you succeed in deploying 4.27 via an offline method, there are a few technical hurdles to watch for:
: Install UE 4.27 on a computer with internet access using the Epic Games Launcher : Navigate to the installation folder (default: C:\Program Files\Epic Games\UE_4.27 ) and copy the entire folder to an external drive. : On the offline computer, go to Engine\Binaries\Win64 and launch UE4Editor.exe Prerequisites : Ensure the target machine has necessary drivers and Visual Studio components installed for the engine to run. 3. Building from Source (GitHub) download full unreal engine 427 offline installer
Schools and universities can request standalone offline installers for lab environments by submitting an official request form How to make a Portable Unreal Engine 4.27 - Full Tutorial If you succeed in deploying 4