Epic provides a command-line tool within the launcher to download engine versions as portable, redistributable ZIP files. This gives you a true offline installer.
Link your Epic Games account to GitHub to access the private UnrealEngine repository Download the Source Code as a file from a machine with internet.
"What is that?" Elias asked.
A standard download might be corrupted. An extra quality installer is . After downloading your offline ZIP or folder, always check the hash.