It checks with Rockstar servers to confirm you own a legitimate copy of the game.
: Once the download (approximately 110GB–150GB) is complete, click the "Play" button. This will trigger the RDR2.exe file and start your journey through the American frontier. Minimum System Requirements Red Dead Redemption 2 Launcher.exe Download
Click Install and wait for the process to finish. It checks with Rockstar servers to confirm you
Navigate to your "Library" or the "Store" tab within the launcher to purchase or install the game. Locating the Game Executable Red Dead Redemption 2 Launcher.exe Download