How to play Grand Theft Auto V: The Manual with GameLoop on PC. 1. Download GameLoop from the official website, then run the exe file to install GameLoop. 2. Open GameLoop and search for “Grand Theft Auto V: The Manual” , find Grand Theft Auto V: The Manual in the search results and click “Install”. 3. How to play Grand Theft Auto V: The Manual with GameLoop on PC. 1. Download GameLoop from the official website, then run the exe file to install GameLoop. 2. Open GameLoop and search for “Grand Theft Auto V: The Manual” , find Grand Theft Auto V: The Manual in the search results and click “Install”. . UZP1F.