Complex is a free advanced game modification based on Relic Entertainment's Homeworld 2 game engine, free of any business directive, developed with passion and hard work, for experienced RTS players only.
In a world of simplified games often under pressure to do well commercially, our challenge has been to create this ambitious project, for those who want more from a modern videogame.
Complex series, actually counts more then 5.000.000 downloads and up to 3000 contacts per days.


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Proven: It is possible to make Campaign work CONCEPT ART Concept: AT Field
Blog RSS Feed Report abuse Latest News: Complex 9.1

5 comments by Beghins on Dec 22nd, 2013

Many additions to the game, new units, new features and better graphical aspect, but the more important improvements have been done on stability, gameplay and performance.
Every duplicate ship/subsystem have been removed, redundant functions cleaned, lagging scripts revisited, a lot of bugs fixed.

The game has been balanced to reach the better space battle experience.
I hope you enjoy all this work!

Complex 9.1
Complex 9.0.1
Full LOG here.

About the future of Complex, considering that Gearbox is working on the new Homeworld, this release is the last one for Homeworld 2, not the last one for Complex.
If the new engine will be great the new Complex will be on the way.

Thanks to everyone who's following Complex for so long time, Beghins.

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Complex 9.1

Complex 9.1

Nov 14, 2013 Full Version 49 comments

This is the first update of the 9 series, and the decade for the Complex Mod.

Complex 8.4.3

Complex 8.4.3

Mar 25, 2013 Full Version 36 comments

Complex 8.4.3 released, a new massive update for the project Complex, a lot of new features and improvements in this release.

Homeworld 2 Complex 7.4.4

Homeworld 2 Complex 7.4.4

Dec 20, 2009 Full Version 17 comments

Complex is a free advanced game modification based on Relic Entertainment's Homeworld 2 game engine, free of any business directive, developed with passion...

Post comment Comments  (40 - 50 of 585)
deathwish36 Jan 8 2014, 7:39pm says:

Can someone message me on how to install and run the mod. I try to lanch the game from Desura and it just crachers I had it running and working two year age but i think it was Complex 5

+1 vote     reply to comment
Beghins Creator
Beghins Jan 9 2014, 12:01pm replied:

Don't use desure, download the file from here. Complex doesn't need desura to be installed.

+1 vote   reply to comment
lordlandraid Jan 2 2014, 5:08am says:

Will be donating once I get paid. Been playing this mod since it was in version 5. Long live Complex!!!

+2 votes     reply to comment
Guest Dec 28 2013, 4:03pm says:

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ZXZX10000 Jan 1 2014, 2:14pm replied:

Also, should desura be updating to the latest version as my copy is running 7.1.4 instead of 9.1 that is being advertised

+3 votes     reply to comment
OneTime5O Jan 2 2014, 6:09am replied:

Windows 7 said it installed incorrectly, so tried running before Windows reinstalled it and afterwards, but the Desktop Icon only starts the vanilla HW2.

Target properties match the .big file in

C:\Program Files\Sierra\Homeworld2\Data

Target properties are

"C:\ Program Files\ Sierra\ Homeworld2\ Bin\ Release\ Homeworld2.exe" -mod Complex91.big -hardwarecursor -overridebigfile"

Tried removing 'overridebigfile' but nothing. Removed the other mod files, didn't change the screen resolution when prompted.

Any help would be appreciated team!

+1 vote     reply to comment
OneTime5O Jan 2 2014, 6:20am replied:

Ignore that. Apparently the game is installing it to the wrong place. If anyone else has this issue, you need to ensure the Complex .big file is moved to the secondary data folder in

C:\Program Files\Sierra\Homeworld2\Bin\Release\data

+1 vote     reply to comment
PublicEnemyN7 Dec 25 2013, 9:48pm says:

Long live the Complex mod :D.

+1 vote     reply to comment
fleetcommander1990 Dec 19 2013, 10:10pm says:

here's a question, are other races going to be playable in the foreseeable future? I noticed you can do that in Complex Simple (Simplex) but that one's nowhere near as stable as this version as complex, at least not according to my computer. would that be because of the extra races and the many different ship types? And if not, i'm not asking that this project be rushed, only if this Complex will get races like the progenotirs and Kadeshi. those are my two favorites from Simplex, I just hated that you could be some races on some maps but not others.

+1 vote     reply to comment
werdman2 Dec 13 2013, 6:43pm says:

Im really enjoying this mod but is there any tutorials for noobs like myself? i seem to be bottoming out my economy on reserch modules and other random upgrades any ideas?

+1 vote     reply to comment
fleetcommander1990 Dec 24 2013, 4:06am replied:

took me a while too, but i figured out it's good to have scavengers, mobile refineries, and trade convoys (when you have an allied player) early on so that you can generate RUs with trade and fusion. you're also going to want to manage your powerstation's magnets, that's a big one, and any time its damage gets too low, DOCK IT! it still gives out power, but the overcharge is gone, and lastly, crewmembers, every time you go up in rank you can add barracks for officers and crewmembers, do it. on how to manage your resources? that's macro/micromanaging. i'm still learning how to do that and my best advise for you is to keep playing the game and figure out what works best for you.

As for upgrades, don't try to do everything at once, it's a lot like supreme commander where you have practically an unlimited supply of resources avbailable in the game, but if you try to do too much too fast, you'll grind your production and research to a crawl. and that's the perfect time for the enemies to strike, when your production is just crap. do little bits, build up your fleet out of what you can, and work your way up slowly from there.

+1 vote     reply to comment
ZXZX10000 Dec 20 2013, 5:36am replied:

There's a sort of tutorial at the top of the screen if it's enabled, otherwise my tip is to install rapid sweepers early to counter fighters and corvettes and use point defence turrets to fend off bigger ships like destroyers.

+1 vote     reply to comment
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Release Date
Released Dec 4, 2010
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501 votes submitted.

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Highest Rated (27 agree) 10/10

The best Mod in history of this game.

Dec 6 2010, 8:45am by JastrzÄ…b

Lowest Rated (14 agree) 1/10

Stupid and useless. It isn't anything like Homeworld.

Apr 27 2011, 9:29pm by p2thewind45

Real Time Strategy
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