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Manual installation instructions for Open-IG
Updated Today (5 hours ago) by


This page details the manual installation instructions for Open Imperium Galactica.

I strongly recommend using the Launcher application which will take care about all the file downloads and the proper startup parametrization of the game.

Installer (version 0.43)


1) Download the current upgrade pack and main game JAR file from the downloads page:

Upgrade 2014-09-02-a-2


Note that the essential upgrade pack contains the ever changing game model and image resources. Without it, the game might not work and behave properly.

2) Download the game resource files (1.3 GB!):

Audio 1, Audio 2, Audio 3, Audio 4, Audio 5, Audio 6

Splash, Images

Video 1, Video 2, Video 3,
Video 4, Video 5, Video 6,
Video 7, Video 8, Video 9,
Video 10,Video 11, Video 12
Video 13, Video 14, Video 15

3) Place all these files into the same directory

4) Run the game:

  • double click on open-ig-0.95.182.jar, or
  • run the following command line:
java -Xmx832M -jar open-ig-0.95.182.jar -memonce
  • create a shell script/batch file and put in:
javaw -Xmx832M -jar open-ig-0.95.182.jar -memonce
Comment by, May 17, 2012

Segítsetek légyszi! Frisitettem a java-t de azt írja ki a launcher hogy valami xml fájl hiányzik a mozilla firefox könyvtárból. Mi lehet a gond?

Comment by, May 20, 2012

If doubleclicking on open-ig-0.94.404.jar (or whatever version you downloaded) doesn't work, you can either use the command line as mentioned above, or you google for a small programm named jarfix.exe, which "repairs" the association of jar files with the JAVA runtime environment. Now you can start every jar file by double clicking again.

Comment by, Aug 13, 2012

Sziasztok! Ha kèrdèsem, hosszàszòlàsom, ötletem, vagy èszrevètelem van akkor kinek az email cimère irjak? De nekem csak magyarul irjatok... :) A játèk feldolgozàsàt kèszitö embernek szeretnèk irni. Elörre is köszi.

Comment by project member, Aug 13, 2012

Üdv, ha bármi gond vagy észrevétel van, írhatsz az issue-listára magyarul is:

Ha inkább kérdésed van, akkor csatlakozz a dumacsoportunkhoz:

Comment by, Aug 24, 2012

Hi folks! The download links for french, english, generic audio and the images don't work from instructions site.

Cheers, Michael

Comment by project member, Aug 25, 2012

@FamilieDrews1? Thanks. Note that you should use the Launcher to do the heavy lifting.

Comment by, Dec 4, 2012

what seems to be the problem with the english audio file?? google reports a broken link!!

Comment by, Dec 4, 2012

ok, got it, needs to manually concatenate the .zip extension!!

Comment by project member, Dec 4, 2012

Thanks, I've fixed the broken link.

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