Install GitHub for Windows then fork and clone our repository. Please make sure you are running Visual Studio 2015 or higher for Windows Desktop installed before proceeding. You can improve the engine and help the whole Unreal community by submitting your fixes and features back to Epic.

If you find a bug that we haven't fixed yet, but that is crucial to your project, you can unblock your project by making the fix in your own version of the source code and rebuilding your own binaries. You'll get access to all the latest features and bug fixes that Epic engineers make every day, practically up to the minute. If you'd rather simply download and install the binary version of Unreal Engine, read our Installing Unreal Engine documentation to learn how to Get Unreal. However, you may find that having access to the source code can be extremely valuable for you and your project. You don't have to download the source code to work with Unreal Engine 4. Have associated your GitHub account with your Unreal Engine account as described on the UE4 on GitHub page. Before you can access the repository at, you must:

Unreal engine download