Project Astra Dominium

About this game

Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements.



Explore different planets and defend against a mysterious alien race, that seem to reproduce endlessly and eat up whole planets.



Make use of the latest Nanite technology to process and refine all resources you find into useful materials for earth or new equipment for your towers.



As an AI you learn from everything you do and become stronger and better.

• Gain combat experience and skillpoints that you can use to improve your towers. Each tower has it's own skilltree with up to 250 points to spend!
  
• Learn recipes to craft various materials, items and also equipment for your towers.
  
• Improve your crafting abilities and effiency to use less resources while having
  more/better/faster output.
  
• Discover more about the aliens and learn to craft special beacons, that attract much stronger species that may also yield much better rewards!
  
• Expand and improve your base to become a reliable resource hub for earth.

It's the year 2249, most resources on earth are nearly depleted and have lead to many conflicts in the past.
Despite those crises, humanity made huge progress in the fields of AI, which in turn allowed for enormous advances in space travel.
Scientists were even able to create a new kind of engine, which made it possible to travel faster than light. But on the downside humans were not able to survive this way of transportation.
In a last desperate attempt and in search for new resources, the EIRO (European Interstellar Resource Organization) built a brand new ship which was only controlled by an AI named "Athena".
Hoping that the AI can survive the jump and begin autonomous exploration and exploitation of resources, the ship is launched into an unknown future...

Latest news

• Announcements·10 May 2026Official

  All quiet on the Astra front

  Hello all you lovely AIs out there! Again it's been quiet around the 2.0 update and again we are very sorry for that! There's no sugar coating it, we sucked at least at 3 things: Posting news, keeping patches focused in scope and estimating how much time we'll have to work on it... Unfortunately like many of you know by now, we are only 2 friends working on this game in our spare time and as we both have full time jobs and also a family this spare time is even more well... "spare". Add deadlines and overtime at work and little kids getting sick every other week to the mix and you have our success formula for constantly not getting to post progress or work for a longer period on the game... Well anyway that's enough self pity, there's still some good news: We still got to finish stuff that we began and are now close to a state of the update that we want to roll out as the promised beta. We decided that we'll focus for now on all the technical and "system" stuff to roll out with the beta as soon as possible and have you test it with us and then while it's out we'll add the missing content to it. Given our record of failed estimations we don't want to give another one, so we know it sucks but: Just keep an eye out for any news here. We'll try our best to finish it this month but again: We can't see into the future and don't want to give another promise we can't keep. You can however always reach us over the Steam discussions, replying to our news or on our Discord. We'll look into it at least once a day, so if you have urgent questions, problems or just want to get an update - visit us there! Other than that we just want to say: Thank you for your patience! And we hope the game as it is still is fun enough to keep you waiting for the 2.0 update :) Stay tuned and safe - Snob Entertainment -
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• Community & Events·9 Mar 2026Official

  Steam Tower Defense Fest and 30% off

  {STEAM_CLAN_IMAGE}/43270782/763683f5628297e740f6bd36ead8472fd4a570c9.png Project Astra Dominium is happy to announce that we are once again taking part in the Tower Defense Fest from March 9–16 here on Steam, and that the game will be 30% off for the duration of the event :) If you are interested in playing a mix of Tower Defense and factory building, you can also check out our free demo first and then decide if you'd like to grab the full game at a discount. Savegames from the demo carry over to the full version! Also note that we are currently working on a bigger update for the game. You can read our latest 2.0 news post for more information about that! Hope to see you all in the 2.0 Beta at the end of March! - Snob Entertainment -
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• Patch Notes·5 Mar 2026Official

  2.0 Update Progress and Open Beta

  Hello all you lovely AIs out there! First of all, we wanted to let you know that we have finished most of the major features and systems that we wanted to overhaul or introduce with the 2.0 update and are now in the process of adding the last bit of content, balancing, and polishing. It'll still take some time and we don't want to pin down a release date yet. However, since we are changing so much with this update, we would love to test things out with you first in an open beta! We aim to start the open beta around the end of March or April. You don't need to do anything to take part. When it's time, we'll release a news post that explains how you can enter the beta through Steam. It will be open to anyone interested in testing the 2.0 update and giving their feedback! Last but not least, here are a few teasers of some smaller fun things that will also come with this update :) {STEAM_CLAN_IMAGE}/43270782/d080d3c53bdc5015c296cbb5fc18c2f51cc11444.png {STEAM_CLAN_IMAGE}/43270782/694459110eab451799a5f11cb0fc509a412a5e1a.png {STEAM_CLAN_IMAGE}/43270782/17ee46bcc90c53cc9f1743361f6a922cc2a62fd9.png {STEAM_CLAN_IMAGE}/43270782/c55a4dd3eec8028c8edc58ef40cd845a7870d2aa.png As always hit us up in the Steam discussions or on Discord and let us know what you think! Hope to see you in the open beta! :) - Snob Entertainment -
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• Announcements·13 Dec 2025Official

  Dev Diary - Upcoming 2.0 Combat Changes

  Well, nowadays this greeting that we've used for so long seems somewhat odd, but here it goes: Hello all you lovely AIs out there! The work on 2.0 is going well so far, even if we had some minor private things keeping us from working on it in full spare time. Today we want to give you a small preview of the upcoming combat changes, clarify some spoilers hidden in the last posts and also receive your thoughts and feedback on these changes! Please note that all is still work in progress, numbers are not final or may be used for testing, images, texts and values may be placeholders yada yada yada The main goal of this rework is to give you more strategic options and decisions as well as more to do in Tower Defense mode, especially when playing higher levels or longer endless rounds. (And last but not least these changes hopefully are fun too) For today's diary, we'll be focusing on the Artillery Tower. General Combat Changes Min / Max Damage Towers now have a damage range instead of a fixed damage value. So for example, if a tower has 5-10 Physical damage, each shot a number between 5 and 10 is rolled. For AoE damage each enemy hit is rolled individually. We think this system brings a bit more dynamic to the battlefield and also allows us for fine-tuning some skills and damage types to our ideas. For example lightning damage having a high roll range, while cold damage is a bit more reliable in that it has not a great roll range, but also less damage in general. It also allows for more customization of equipment, as you are able to pick whether you'd like to increase min or max damage of an element. Tower Levels Each time a tower damages an enemy, they gain a fraction of the enemy XP, depending on how much damage they've dealt. When the tower reaches a certain threshold, it levels up. Each level gives a small damage buff which is +1% by default. This buff can be increased by the Skilltree or Tower A.I. Chips, that also increase various stats like the max level, required...
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• Announcements·31 Jul 2025Official

  Project Astra Dominium 2.0 is coming!

  Hello all you lovely AIs out there!July 2025 was an incredible month for Project Astra Dominium, and we want to give a massive thank-you to all our players – both longtime fans and newcomers alike.Your support means everything to us!We’re currently working on a major patch that turned out to be even more ambitious than we originally planned. At the end of September we'll probably be done with all deadlines in our jobs and then we can turn our full attention back to the game!So, it’s taking a bit more time, but we truly believe it will improve the game by a lot! Here are some small teasers for some upcoming changes:Thank you for your patience – we’re committed to making the best game possible. Stay tuned, and get ready for what’s coming next!- Snob Entertainment -
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