Sirius Online is a unique, easy to play Space Action Shooter with Twitch integration and ongoing progression. Join the Ranks of the Terran Reclaim Forces or the Sirius Colonial Council today and fight for your Faction! Explore forgotten battlefields, find Treasures, create an empire and rule the universe!
All Reviews:
Mixed (76) - 65% of the 76 user reviews for this game are positive.
Release Date:
Jun 1, 2015

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Early Access allows us to spend more time on features and bug fixes while also listening to player feedback and implementing it before the game moved along too far and the product ends up being no fun.”

Approximately how long will this game be in Early Access?

“Our Goal is to have a finished game towards the end of 2017, but we can't promise that it'll be done by that time exactly.”

How is the full version planned to differ from the Early Access version?

“The Early Access version is currently in Alpha
Sirius Online is currently in Alpha, which means that many bugs are to be expected, core gameplay elements can change, features are missing or might even be removed and so on. Our plan for the full release is:
  • Cross-Platform (Linux, OSX, Windows)
  • Mouse & Keyboard and Full Controller Support
  • Single- and Multiplayer, Dedicated and Listen Servers
  • Modding Support (Ships, Stations, Planets, Sectors, etc)
  • ... (and more)
This list may change during development and is not final or a promise that any of these will make it in.”

What is the current state of the Early Access version?

“Sirius Online is in Alpha, so bugs, glitches and downtime are to be expected.”

Will the game be priced differently during and after Early Access?

“This will resemble final Price of the Game”

How are you planning on involving the Community in your development process?

“We actively read reviews, feedback, comments and forum threads and respond to them. If you encounter a bug, have feedback, an idea or a suggestion do tell us and we will happily read and respond to you.”
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Recent updates View all (102)

January 28

Release Plan for Age of the Free Agents

Hello Pilots!

Age of the Free Agents is progressing in a Spectacular Way, and recently reached Feature Complete. After having quite a few people playtest whats new in this game in a more vivid (and more importantly, more performant universe), it is time to adress the changes and the upcoming Launch of the Game.

We have got a story!

Age of the Free Agents will get free Episodic Content with a fully voice acted storyline. Most of "Episode Zero: Return of The Crimson" is already recorded and on its way to be implemented. Follow your own path or help your faction uncovering the mystery behind a new signal source from beyond the gate network.

More stuff to do!

With the still raging faction conflct, you will be able to influence Ownership of the sector until you leave that system. An actual Live counter will show the distribution of forces in the Systems Clashing Fates and Irreversible Thought, and BRIAN, your Ship AI will inform you of new roaming hostile forces. Taking claim of a system might allow you to... upgrade your ship and get certain perks.

Upgrades to die for!

With the Market out of the Question and New Ships tied to your Faction Rank, you're probably asking yourself: But Dex, how can I progress? This is an Easy Solution: Upgrades! You can find them hidden away in containers, as Faction Reward or even from shady figures along the campaign. This might include more Shields and Armor, Faster Repair Times, better Scanning or countless other things.

Get out there and Explore.

Release Plan

Due to the Story being added on top, The release is postponed to about Feb 7th, to give the story just the right amount of polish and record a proper trailer, without which you cannot release on Steam.

A Website Appears!

You can now sign up for the AotFA Newsletter on the website: Website is hidden here

Feel free to sign up so you get notified on release.

The Launch Key Replacement Campaign

Small reminder that this is still up. The responses have so far been good and I thank everyone of you who cooperated and even those who just wanted to apologize buying from a third party.

If you Bought Sirius Online at full price (4,99$ or up) via Steam, you will be egligible for a free Upgrade. I will offer a limited set of replacement keys:

The Procedure used will be the following:
  • You send a proof of Purchase to sirius-upgrade @
  • The mail must contain your Steam Username
  • You will get an Autoresponder Mail.
  • I will personally check if you're egligible for the upgrade
  • If yes, you will get the new game as well.

I hope I can make you excited about the game as much as I am with the recent story development,


0 comments Read more

January 16

Age of the Free Agents Update and the free Upgrade 01/19

Hello folks!

Age of the Free Agents slowly nears its release with more and more features fully working and a proper Team slowly assembling. This means its is Time to detail things to you.

The Shop Page should go live in a few days, and, even if some believe so, I have not forgotten my "Free Update" promise. If you have bought SIrius Online at full price via Steam, you will be egligible for a free Upgrade. I will offer a limited set of replacement keys, beginning NOW.

The Procedure used will be the following:
  • You send a proof of Purchase to sirius-upgrade @
  • The mail must contain your Steam Username
  • You will get an Autoresponder Mail.
  • I will personally check if you're egligible for the upgrade
  • If yes, you will get the new game as well.

The reason for doing this is that Age of the Free Agents deserves a long time Support. Sirius Itself has saturated its market share and cannot support the development, even with an update of this size. There are still over 135.000 black market keys for that game in the wild which I cannot revoke.The Choice is easy:

Quickly put together Update and never do anything again?
Write a new Game around the same setting, with a storyline, long term support and updates, while having it support the development through sales?

The Choice has been quite Obvious, as it has been influenced by quite a lot of people who have reached out to me and told me about the latter as an option.

To more pleasant things:

The game is now 95% feature complete and currently had the Combat Client Update released to backers and testers. A lot of technical improvements as well as a few days worth of complete code refactoring happened, removing obsolete code, refreshing definitions, simplifying functions, beefing up the graphics.

This being said, the RAM Footprint of the game is now down to 1GB instead of almost 3GB and the performance in general went up by 70%. NPC AI System T.O.A.St. reached V9.1, the Interface went much more pleasant and the minimap now displays way more details.

If you yearn for more info, follow the games official Twitter Account

Don't wait and send out your emails today!

0 comments Read more
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“Sirius Online will become memorable for all the right reasons.”

“[...] this is very fun and I cant wait to see where it is going to go.”

“I went into this expecting nothing and I got a great early access Freelancer like MMO.”

About This Game

War. A never ending source of waste. A never ending demand for more lives and resources. The Year is 2436, and humanity, once again, wages war on itself. Nearly a hundred years ago we settled on the Sirius Star System, a rich system with two habitable planets. The first Settlers, now forming the Sirius Colonial Council built this ecology from the ground up. They self-governed and prospered. Five years ago, the Terrans appeared, demanding to return the Control over the System. Failure to do so would result in catastrophic response from the Terran Reclaim Forces.

And so, once again, war erupts.

Take part of the war or live along both sides, trade, fight, think and explore. Be the tip at the iceberg of the upcoming conflict. Control the Economy with your Trading Craft. Find unimaginable riches in our galaxy quadrant. Battle Pirates and even more sinister forces. Create your own Empire among the Stars.

Sirius 1.3: Enemies of the Gods

If you can read this, you've caught me red handed, updating this game.


  • Explore Planetary Systems with a living economy and hidden riches and lore.
  • Take your Side in an Endless war between the SCC and the TRF. Defend your Homeland or take it back for Earth
  • Influence a steadily changing market of supply and demand and work your way up to bigger ships
  • Survive the onslaughts of an unforgiving AI assault destines to kill everything living.
  • Be a part of an ever evolving universe
  • NEW: Twitch integration. Stream the game and have your viewers send you gifts or pirates!

System Requirements

    • OS: Windows 7 or newer
    • Processor: Intel Dual Core 2.80 Ghz, AMD Dual Core 3.0 Ghz or better
    • Memory: 4 GB RAM
    • Graphics: nVidia geForce GTX 970 or comparable
    • DirectX: Version 10
    • Network: Broadband Internet connection
    • Storage: 2 GB available space
    • Sound Card: Not necessary
    • Additional Notes:
    • OS: Windows 10 release or newer
    • Processor: Intel Dual Core 3.00 Ghz, AMD Quad Core 3.5 Ghz or better
    • Memory: 8 GB RAM
    • Graphics: nVidia geForce GTX 1070 or comparable
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 4 GB available space
    • Sound Card: HW-Mixing and HW-Buffers supported
    • Additional Notes:

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