Point your private server launcher to the extracted FortniteClient-Win64-Shipping.exe file. Run the Game: Launch the game through the server tool. Safety and Risks
Provides a structured table of build dates, engine versions (like UE4.20), and corresponding download links. 3. How to Use Downloaded Builds: Private Servers
Because Epic Games does not officially provide access to historical versions of the game, a passionate community of developers, data miners, and preservationists has stepped in. By utilizing GitHub, creators host repositories that allow users to download, organize, and interact with old Fortnite builds.
To actually play these old builds (often in a single-player or private server capacity), you frequently need specific launchers: RealProHenis/ButterflyLauncher
This site (hosted on GitHub Pages) provides a user-friendly interface to download builds from Season 1 through Chapter 1, often detailing which builds work with private server tools like "Era". How to Use Fortnite Builds (General Steps)