Load the project into Visual Studio by double-clicking on the UE4.sln file. It should take less than a minute to complete. Run GenerateProjectFiles.bat to create project files for the engine. Subsequent checkouts only require incremental downloads and will be much quicker.
Click "More info", then "Run anyway" to continue.Ī clean download of the engine binaries is currently 3-4gb, which may take some time to complete. On Windows 8, a warning from SmartScreen may appear. This will download binary content for the engine, as well as installing prerequisites and setting up Unreal file associations. Open your source folder in Explorer and run Setup.bat. Third-party zip utilities don't normally do this.Īll desktop editions of Visual Studio 2017 can build UE4, including Visual Studio Community 2017, which is free for small teams and individual developers.īe sure to include C++ support as part of the install, which is disabled by default. The built-in Windows zip utility will mark the contents of zip files downloaded from the Internet as unsafe to execute, so right-click the zip file and select 'Properties.' and 'Unblock' before decompressing it. If you'd prefer not to use Git, you can get the source with the 'Download ZIP' button on the right. To use Git from the command line, see the Setting up Git and Fork a Repo articles. 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:
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