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open.mp server v1.6.7.3218 and Launcher v1.7.0 are now available!
This server release adds NPC vehicle controls, improves NPC vehicle movement, and fixes networking and scripting issues. Server changelog | Server download
The launcher improves its in-game overlay, graphics-mod support, and connection reliability. Launcher updates

Open Multiplayer

A brand new multiplayer mod for Grand Theft Auto: San Andreas that is fully backwards compatible with San Andreas Multiplayer.

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Fully backwards compatible with existing scripts and clients

Got an old AMX lying about? Load it up on the open.mp server straight out of the box and join your friends playing on the SA:MP client. Then when you want to enhance your code look in our docs.

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New and improved scripting system

We've stuck with pawn, but with a new compiler engineered to make your code more robust, and more functions to manipulate the server and client.

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Community driven development

The server is fully open source, and we welcome all contributions big or small. Help write the next version, or just post about any problems you find, despite our attempts to have perfect code, bugs happen and your feedback is valuable.

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Extensible C++ API

Get access to all the server features available in pawn, plus the universe of C++ libraries and frameworks. Once you've mastered this why not help improve the server via our open contribution process on GitHub.