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= Introduction = Note 1: If you are reading this on any site but http://www.opensimulator.org, you might not be actually downloading OpenSimulator.org software. Please check your browser URL before proceeding any further.

Note 2: Depending on what you want to do with OpenSimulator, setting it up and keeping it running will require a fair amount of technical knowledge. After downloading OpenSim, please consult the several instruction manuals on this Wiki and elsewhere. Please be aware that the learning curve for operating OpenSimulator is steep.

Note 3: Many Linux distros (including Ubuntu) ship with only the "mono-runtime" package installed, however you need to install "mono-complete" for some OpenSimulator features such as LSL script commands. You must also use at least Mono V2.4.3 (Ubuntu 10.04 ships with mono 2.4.4 which works fine).

Note 4: OpenSimulator is made available under the BSD License. Downloaders of the code also receive an additional IP Rights Grant for any intellectual property licensed to OpenSimulator under the terms of the Contribution Agreements.

As OpenSimulator is still at an alpha code maturity stage, there is absolutely no guarantee that functionality works or is stable.

= Binary Packages =

Current release
Binary packages of the latest OpenSimulator release are provided in .zip or .tar.gz form. The two packages are theoretically identical, though the .tar.gz was built using mono while the .zip was built using .NET.

Once you've unzipped/untarred these you'll be able to run OpenSimulator 'out of the box' in standalone mode - no code compilation or other installation required.

The current release is  (released on ) and can be downloaded as


 * [ opensim-.tar.gz] or
 * [ opensim-.zip]

After unpacking please read the Release Notes. Further instructions may be found in README.txt after you untar/unzip the archives.

= Other Distributions =

OpenSimulator is a BSD licensed codebase, so other projects are welcome to repackage OpenSimulator and add their own modules or configuration. Current known public distributions are

http://github.com/diva/d2/downloads
 * Diva Distribution, a Preconfigured hypergrided standalone, binary distribution. Easy to setup and to keep up to date. Windows and Linux/Unix. Download the file diva-rNNNN.zip, unzip it, read README.txt and take it from there.

http://www.osgrid.org/index.php/downloads
 * OSGrid distribution. This is preconfigured for connection of an OpenSimulator instance to http://osgrid.org.

http://code.google.com/p/newworldstudio/
 * NewWorld Studio. Preconfigured standalone for beginners with GUI manager, automatic router configuration. Selection of hypergrid mode at startup. Windows only.

http://simonastick.com/
 * Sim on a stick (SOAS). A portable, standalone and self-contained deployment of OpenSimulator.  Can be run from a USB stick on most Windows PCs.

= Source code =

Current release
The two packages are identical apart from their compression formats.


 * [ opensim--source.tar.gz] or
 * [ opensim--source.zip]

Source code repostory
You can also download code directly from the OpenSimulator source code repository. However, we only suggest doing this if you've very familiar with OpenSimulator. Master development code at any point may be broken or may contain database changes that later need to be reversed.

= Previous releases = You can find previous releases of OpenSimulator at http://opensimulator.org/dist. Very old releases (pre OpenSimulator 0.6.8) only have source code packages.

Previous Release Notes

= Developers and Testers = If you're a developer or a tester and you want to download possibly broken development code then please go here

= Related Software =
 * Related Software Section - Here you can find details on OpenSimulator compatible viewers, external components (e.g. web sign-up systems) and add-on region modules.

Pages by Category: User-pages, Developer-pages, Scripts