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A batch battle runner by Voidious, in the vein of RoboLeague and RoboResearch. Designed to be easy to setup and to run fast with multi-threading and persistent Robocode engines, using the Robocode control API.

RoboRunner is a command line utility. If you prefer to use a GUI, take a look at Skotty's excellent RoboJogger front-end or Chase's snazzy new RoboRunner GUI.

Download and install

Fork by Xor

Source code:

It contains a few bug fixes, since the original version is not actively developed any more. It also supports Windows, though you'll need to build it from source.

Known issues:

  • [wontfix] robocode has some bugs (fixed in, making it incompatible with roborunner.
Robocode version compatibility

Not all versions of robocode are compatible with RoroRunner. For example version would fail but and above works.

The original version

The original version has some bugs with the newest Robocode version, but is preserved here for the history.

  • Download it here: (1.6 MB)
  • Unzip the contents into a new directory, e.g. ~/roborunner.
  • Run to make n clones of an existing Robocode directory, where n is the number of concurrent threads you plan to run with. E.g., ./ 3 ~/robocode_1.7.4.1

Sorry, the setup is Unix only right now. If anyone wants to contribute analogous .bat files, please feel free. Or maybe you can run the shell scripts with Cygwin. RoboRunner itself should work fine if you install some copies of Robocode and point to them in

Running battles

  • Copy some bots into roborunner/bots. JARs will be copied, if necessary, into the robots directory of each Robocode install on launch.
  • Create a .rrc file to configure a challenge, or use one from RoboResearch.
  • Run some battles with E.g., ./ -bot voidious.Diamond 1.8.2 -c dibed35.rrc -seasons 5

Advantages over RoboResearch

  • Easy to setup and get started.
  • Keeps Robocode engine processes up and running instead of spinning up a new JVM for every battle, for much improved performance.
  • Support for Melee, teams, and custom battlefield sizes.
  • Smart battle selection for more accurate scores in less time.
  • Scores for each challenger are kept in a separate file. No slow-downs because of all the previous battles you've run, and no fussing with databases.
  • Cleaner, more human readable output.

Source code

I've published the code in the public domain at GitHub: RoboRunner repo

RoboRunner depends on Guava, which is included in the download above. Read about it or grab the latest JAR here:

What's missing?

There are still some important things missing. Here's my current to do list, in rough priority order.

  • handle errors in battles, maybe dying processes or timed out battles too
  • support for Windows (.bat files and/or setup instructions)
  • unit tests!
  • arg to clear .data dirs before starting
  • recover from corrupted data files
  • print avg elapsed time per battle at end
  • option for complete, per bot output after every battle or season

Feature ideas

  • Custom battle listeners for more sophisticated scoring or other analysis.
  • Optional "ghost bot": print score comparisons to a different bot/version that you've already run.
  • Use TCP for communicating with Robocode processes. Then we can enable running in listen-mode and passing a list of remote RoboRunner processes.