SmartFoxServer is a comprehensive SDK for rapidly developing multiplayer games and applications with Unity, HTML5, iOS, Android, Java, Universal Windows Platform, Adobe Flash/Flex/Air, C++ and more.
SmartFoxServer comes with a rich set of features, an impressive documentation set, tens of examples with their source, powerful administration tools and a very active support forum.

Born in 2004, and evolving continuously since then, today SmartFoxServer is the leading middleware to create large scale multiplayer games, MMOs and virtual communities.
Thanks to its simplicity of use, versatility and performance, it currently powers hundreds of projects all over the world, from small chats and turn-based games to massive virtual worlds and realtime games.

May 12th, 2022SmartFoxServer 2.18.3 is out!

We just released SFS2X patch 2.18.3 which fixes a couple of problems with the Analytics module, adds IP-range support for Admin clients and fixes a minor UI issue with the AdminTool. You can read the release notes and proceed with the download from here.

While you are at it, also check out the latest client API in our dedicated download section.

Please note: the patch requires SFS2X 2.18.0 to be already installed.

March 25th, 2022SmartFoxServer 2.18.2 is available!

We just released SFS2X patch 2.18.2 which provides a series of features that have been requested and launches updated client-side APIs for all supported platforms. You can read the release notes and proceed with the download from here.

The latest client API can be obtained from our dedicated download section.

Please note: the patch requires SFS2X 2.18.0 to be already installed.

January 12th, 2022SmartFoxServer 2.18.1 is available!

We just released a small update for SFS2X 2.18 that addresses a bug and a couple minor issues we’ve found. You can read the release notes and proceed with the download from here.

Please note: the patch requires SFS2X 2.18.0 to be already installed.

December 13th, 2021SmartFoxServer 2.18 is out!

We have just released SmartFoxServer 2X 2.18.0, which provides several library updates, new runtime, support for M1 Macs, extra features and bug fixes.

Please note: the new release comes as a standalone installer so it can’t be used to update a previous instance.

» Get the new SmartFoxServer 2.18.0 installer from our download section.
» Read the full release notes here.

October 20th, 2021Load Balancing SmartFoxServer 2X with HAProxy

In this article we are going to explore several ways to use the open source HAProxy load balancer in conjunction with SFS2X, to increase the scalability and availability of a multiplayer project.

We are going to show different configurations for TCP and Websocket connections and several ways to setup the system for common use cases.

To get the most out of this tutorial we require a basic knowledge of what a Load Balancer is and how it works, and some familiarity with the basics of networking and the OSI Model.

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