From the makers of the award-winning Imperium Galactica 1 and 2 games, discover a powerful space-opera like RTS game.
User reviews: Mixed (27 reviews) - 51% of the 27 user reviews for this game are positive.
Release Date: May 1, 2002

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Buy Haegemonia Bundle

Includes 2 items: Haegemonia: Legions of Iron, Haegemonia: The Solon Heritage

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Recent updates View all (1)

October 23

[Patch] Windows 10

Dear community,

First thank your for your feedbacks.

Now people who use windows 10 will be able to play the game.

Note: Sometimes when you are loading a new game a crash might occur. We are still investigating and will post a new update for this one.

7 comments Read more


“The game’s superb attention to detail places it in the ranks of the best modern RTS games.”
90% – Gamer's Pulse

“With all the game elements perfectly balanced, this is a worthwhile purchase for any fan of the real-time strategy genre.”
89% – PC Gameworld

“Visually stunning. But more than that, this is game that will challenge cerebrally in a way few RTS games have in the past.”
89% – GameZone

About This Game

The year is 2104. Mars has been colonized and has decided it’s time for independence from Earth. Tensions rise until finally war is declared between the two factions. After weeks of fierce battles and heavy losses – just as humanity is in its weakest and most divided state - a cunning alien force emerges from the depths of space and threatens to take over the solar system.

The two sides must now band together, forming the Legions of Iron to fight this new enemy force. From the makers of the award-winning Imperium Galactica 1 and 2 games, discover a powerful space-opera like RTS game.

Can you stand up to the challenge?

  • Epic real-time space battles waged with waves of fighters and massive battleships
  • Stories and random events keep you busy as you climb the ranks
  • Research and development of technology will either help you be successful or be your demise. Do you specialize or diversify… choose wisely.
  • Prepare to test your cunning, strategic skills… collect resources, harvest, manage your inventory and your budgets carefully because your enemies will come at you with a godlike force.

System Requirements

    • OS: Windows XP, Vista, 7
    • Processor: 1 GHz
    • Memory: 512 MB RAM
    • Graphics: 3D graphics card compatible with DirectX
    • DirectX: Version 9.0c
    • Storage: 1 GB available space
    • Sound Card: Windows DirectSound compatible sound card
    • Additional Notes: Windows compatible mouse and keyboard. Local multiplayer only. There are no servers.
Helpful customer reviews
2 of 3 people (67%) found this review helpful
23.7 hrs on record
Posted: October 23
One you apply the sound fix to this game it's a great space game used to play it years ago and having played through the single player campaign again on the steam version it was well worth playing again.
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2 of 4 people (50%) found this review helpful
0.6 hrs on record
Posted: September 28
Haegemonia is a pure space RTS in ever sense of the genre! From the gameplay, graphics and sound the attention to detail is breathtaking; creating a solid, immersive gaming experience!

Whether you're a seasoned RTS junkie, or even a casual gamer -- this is one game you don't want to pass up!

It's laid back, challenging, fun and rewarding -- all the at the same time. Recommended! :)
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188 of 211 people (89%) found this review helpful
2 people found this review funny
24.5 hrs on record
Posted: May 5, 2014
One of the best space-real-time-strategy-games ever created.
It has an interesting story, beautiful explosion-graphics and a high replayability.
Multiplayer is pure fun and very challenging.
The HUD isn't the best, but also not the worst. Just buy the cheap bundle and try it out!

If you are playing on windows 7, THERE WILL BE game crashing bugs. BUT there is a solution!

Download Hgm_Soundfix here:

-> Go to steam/steamapps/common/Haegemonia Legends of Iron, backup your hgm.exe and
paste in the hgm.exe you downloaded

-> Put compatibility for windows xp service pack 3 and administrator rights. (Rightclick on the new hgm.exe)

Download Haegemonia v1.10 [GERMAN] No-CD/Fixed Image from here: {LINK REMOVED}

For the next step, you need the program daemon tools. You can download it here :

-> Extract the files you downloaded and mount the Iso in daemon tools.

Then just start the game, it works perfectly fine!
P.s. Maybe the game asks for a key, just search one online, they are easy to find.
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86 of 96 people (90%) found this review helpful
22.1 hrs on record
Posted: May 4, 2014
I love this game. I have loved it ever since it came out in 2002. Yes it's an older game. Yes it has bugs. But these can be worked around with a simple amount of research (like the sound error that some people get). And no it does not have widescreen support. You'll have to enjoy the game with either the black borders or a stretched image, depending on your computer's settings. Is it inconvenient? Yes. Is it game breaking? not in the slightest.

For a 2002 game, the game play is great, and the graphics are great (for a game of its era) and the explosions are great even for modern day games.

It's easy to get frustrated when you fail a mission, many people haven't quite gotten an understanding for the game yet and blame their mission failure on bugs. I've beaten the GOG version several times and I will surely play through the steam version just as many times. The replayability of this game is endless to me.

This is not a short game to play through, many missions will take hours to complete. You start out in the Earth-Mars war, you even get to choose who's side you want to fight for. These missions are introductory missions, teaching you how to play the game, planetary management, and research, and the levels get progressively harder as you go. In some missions, money management is absolutely CRUCIAL.

Battles can be quite intense at times and definitely fun to watch.

If you enjoy Space RTS games, this is definitely the best. Yes it's old, but its fun, very fun and a must have. Just make sure if you get errors, you look for the fix before rageposting about how "bad" of a game it is.

Oh and, in the first missions, make sure to press the F1 key (it will inform you of this) as all the information for controls you need will be listed there
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35 of 40 people (88%) found this review helpful
1 person found this review funny
27.1 hrs on record
Posted: July 16, 2014
I have Spent around 19 hours so far on this game, and I have loved all of them even if a Mission takes Four hours to Complete, or If I don't understand what to do at the begging of it. It's such a Beautiful, and Amazing game I'm so glad I purchased it!
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