In this video I teach you how to install multiplayer mode for grand theft auto san andreas. Hope you liked this video. Stay tuned for more videos to come. Links: Download SAMP: 1 Ensure you have a legitimate copy of San Andreas installed. SA-MP, the program that allows you to play San Andreas as a multiplayer game, is a mod (short for "modification"). This means that, for the mod to work, you must already have San Andreas installed on your computer. As a standalone program, the mod has no gameplay capability. Write "Grand Theft Auto San Andreas" in the search box and choose "Edit Launch" Now we're gonna add the custom launch options. As I said, SA-MP and MTA must be installed in the same directory as GTA SA. Press "Add New" twice. Fill as explained in the picture: Note:changing gta-sa.exe to gta_sa.exe is optional. Press "OK" and then "Save RY5fY4.