Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Community effort to maintain and improve Jedi Academy + Jedi Outcast released by Raven Software
C++ C Other
Branch: master
Failed to load latest commit information.
CMakeModules Build bundled libjpeg as static library.
code Shared: Remove unused FixedMap.h
codeJK2 SP: Fix incorrect use of & operator
codemp [MP] Fix check for empty rconpassword in CL_Rcon_f
documentation/developer Brief explanation of libraries being loaded and their entry points
lib Update internal libjpeg to 9a. Fixes #721
shared Shared: Make sure extended ascii is converted to uppercase as well
tools Fix build on Visual Studio <2015
ui Bye Xbox. Bye Gamecube.
.gitattributes Added .gitattributes and .gitignore files.
.gitignore [Git] Add build64 to gitignore for Win64.
.travis.yml Disable the i686 Linux Travis build, the setup is quite slow Update
CMakeLists.txt Update internal libjpeg to 9a. Fixes #721
CreateVisualStudio2010Projects.bat ... pause the batch files on errors too
CreateVisualStudio2012Projects.bat ... pause the batch files on errors too
CreateVisualStudio2013Projects.bat Add Visual Studio 2013 bat file. Requires CMake or newer for…
CreateVisualStudio2015Projects.bat General: Add batch file for creating VS 2015 projects.
LICENSE.txt Update LICENSE.txt Fixed README formatting and fixed links
rv-readme.txt General: Add the original Raven GPLv2 readme to the repository under


OpenJK is an effort by the JACoders group to maintain and improve the game engines on which the Jedi Academy (JA) and Jedi Outcast (JO) games run on, while maintaining full backwards compatibility with the existing games. This project does not attempt to rebalance or otherwise modify core gameplay.

Our aims are to:

  • Improve the stability of the engine by fixing bugs and improving performance.
  • Provide a clean base from which new JO and JA code modifications can be made.
  • Make available this engine to more operating systems. To date, we have ports on Linux and OS X.

Currently, the most stable portion of this project is the Jedi Academy multiplayer code, with the single player code in a reasonable state.

Rough support for Jedi Outcast single player is also available, however this should be considered heavily work in progress. This is not currently actively worked on or tested. OpenJK does not have Jedi Outcast multiplayer support.

Please use discretion when making issue requests on GitHub. The JKHub sub-forum is a better place for support queries, discussions, and feature requests.

IRC Forum

Coverity Scan Build Status

Windows OSX Linux x86 Linux x64
Windows Build Status OSX Build Status Linux x86 Build Status Linux x64 Build Status



OpenJK is licensed under GPLv2 as free software. You are free to use, modify and redistribute OpenJK following the terms in LICENSE.txt.

For players

To install OpenJK, you will first need Jedi Academy installed. If you don't already own the game you can buy it from online stores such as Steam, Amazon or GOG.

Installing and running OpenJK:

  1. Download the latest build for your operating system.
  2. Extract the contents of the file into the Jedi Academy GameData/ folder. For Steam users, this will be in <Steam Folder>/steamapps/common/Jedi Academy/GameData.
  3. Run openjk.x86.exe (Windows), openjk.i386 (Linux 32-bit), openjk.x86_64 (Linux 64-bit) or the OpenJK application (OS X), depending on your operating system.

For Developers

Building OpenJK

Contributing to OpenJK

  • Fork the project on GitHub
  • Create a new branch and make your changes
  • Send a pull request to upstream (JACoders/OpenJK)

Using OpenJK as a base for a new mod

  • Fork the project on GitHub
  • Change the GAMEVERSION define in codemp/game/g_local.h from "OpenJK" to your project name
  • If you make a nice change, please consider back-porting to upstream via pull request as described above. This is so everyone benefits without having to reinvent the wheel for every project.

Maintainers (in alphabetical order)

  • Ensiform
  • Razish
  • Xycaleth

Significant contributors (in alphabetical order)

  • eezstreet
  • exidl
  • ImperatorPrime
  • mrwonko
  • redsaurus
  • Scooper
  • Sil
  • smcv
Something went wrong with that request. Please try again.