Multi Theft Auto (MTA) is an open-source multiplayer modification for Grand Theft Auto: San Andreas, enabling players to enjoy online modes like roleplay, racing, deathmatch, and custom gamemodes.

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🚀 Overview

Multi Theft Auto transforms Rockstar's single-player Grand Theft Auto: San Andreas into a fully networked multiplayer game using code injection and hooking, without altering original files. It provides a sandbox environment extended through Lua scripting, supporting hundreds of players in custom game modes created by the community.

This project solves the lack of official multiplayer support in GTA: San Andreas, one of the most beloved games in the series. It's built for GTA fans craving online play, from casual racers to dedicated roleplayers and server operators.

Developed by a passionate community since the early 2000s, MTA went open-source to foster contributions and transparency, continually improving synchronization and features for the best GTA multiplayer experience.

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✨ Key Features

• Powerful Synchronization: Best-in-class GTA sync for precise player actions, like limb-specific shooting, constantly improving.
• Lua Scripting System: Easy-to-use scripting for custom gamemodes, resources, and gameplay extensions.
• Map Editor: Built-in tool for creating custom maps and tracks.
• Race Mode: Compete on hundreds of community tracks across San Andreas.
• User Interface System: Advanced UI for complex tasks, especially roleplay.
• Stealth/Deathmatch Modes: Popular modes for sneaking, combat, and more; optional upcoming features via community resources.

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🛠 Tech Stack

• Frontend: C++ (game client with GUI rendering), Lua scripting
• Backend: C++ (networking and server), Lua scripting
• Build: Premake5
• Other: Code injection/hooking into GTA SA engine, resource system for mods
• Database: N/A (file-based resources)
• Auth: None (anonymous play)
• Hosting: Self-hosted dedicated servers (Windows/Linux)

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👥 Who Is This For?

This project is useful for:

• GTA San Andreas fans who want to play online multiplayer
• Gamers seeking roleplay, racing, or deathmatch servers
• Developers and scripters building custom gamemodes and maps
• Server operators hosting communities

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📸 Screenshots / Demo

• Live demo: https://multitheftauto.com/ (in-game server browser with 2,600+ players)
• GitHub: https://github.com/multitheftauto/mtasa-blue

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🔥 Project Status

• 🟢 Actively building

Last updated: 2026-03-24

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❓ FAQ

Is this project free?

Yes / Open Source (Free to download and play; donations appreciated for development.)

Is the source code available?

Yes — https://github.com/multitheftauto/mtasa-blue

Can I contribute?

Yes — Fork the repo, follow CONTRIBUTING.md, submit PRs. Join the forum for scripting help, report issues, or contribute to modules/resources. Development guided by milestones and nightly builds.

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📬 Contact & Links

• Website: https://multitheftauto.com
• GitHub: https://github.com/multitheftauto
• Discord: https://discord.gg/mtasa
• Forum: https://forum.multitheftauto.com

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