Warning: Do not simply copy the Epic Games Launcher folder from Program Files. That contains launcher data, not the engine. You need the actual UnrealEngine folder you specified during install.
There are several practical reasons developers seek an offline installer: unreal engine 4 free download offline installer
Offline machines often lack the necessary C++ runtimes. Download the VC++ Redistributables (2015-2022 package) from Microsoft on a connected PC and transfer them. Install before launching UE4. Warning: Do not simply copy the Epic Games
Yes. Unreal Engine 4 is free to download and use. Epic Games applies a royalty model: you pay 5% royalties only after your product earns over $1 million USD in gross revenue. For students, hobbyists, and small studios, it’s completely free. and small studios