Download Request
The total size is roughly 25GB to 45GB depending on the version (Android/iOS content adds bulk).
After installation, you'll need to activate UE4 using your Epic Games account:
Choose your target platforms (iOS, Android, Linux, etc.) during the install prompt to ensure all dependencies download. Let the installation complete fully. Step 2: Locate and Copy the Engine Folder
Open them with a text editor to verify the "AppName" field says something like UnrealEngine_4.27 . Copy these .item files to your external drive. Step 4: Deploying to the Offline Workstation Install the on the offline machine.
Run to build the solution files for Microsoft Visual Studio.
Open the generated UE4.sln file in (which must be pre-installed on the offline machine with C++ profiling tools).
However, downloading and installing UE4 can be a challenging task, especially for those with limited internet connectivity or residing in areas with slow download speeds. To overcome this hurdle, Epic Games provides an offline installer for UE4, allowing users to download and install the engine without an active internet connection. In this article, we'll explore the Unreal Engine 4 download offline installer, its benefits, and provide a step-by-step guide on how to use it.
🏢 Method 1: The Official Academic & Enterprise Method (Recommended)
As of 2025, Epic has not released an official .msi or .exe standalone installer. Their support document (Zendesk #4721) explicitly states: "We do not provide offline installers. Developers with security needs should use GitHub and compile internally."
Ensure your entire team uses the exact same version of the engine, preventing incompatibility issues.
On your connected PC, download the asset pack from the Marketplace inside the launcher. Create a dummy project and add the assets to it. Zip up that project folder.
Copy this compressed archive to an external storage device, such as a high-capacity USB drive or external SSD. Step 3: Deploy on the Offline Machine Plug the external drive into the offline computer.
Because a traditional single-file installer does not exist, you must use one of the two official workarounds provided by Epic Games. Method 1: The "Copy and Paste" Method (Easiest)
Burn that to a Blu-ray or keep it on a RAID 1 drive. You will thank yourself when Epic deprecates UE4 downloads in 2026.
This method involves installing UE4 on one machine, then transferring the installation folder to the offline machine.
Download Request