Multi Theft Auto: San Andreas software (version 1.4.1) is a modification for the popular video game Grand Theft Auto: San Andreas. The software allows players to join online multiplayer servers and play together in a variety of game modes, including racing, deathmatch, and roleplaying. The software supports custom scripting, allowing server owners to create unique game modes and features. Additionally, players can customize their game experience with mods and skins.