
Project Astra Dominium
Project Astra Dominium is a Tower Defense game with Basebuilding and Automation elements. Build up your base to become a supply hub for Earth's desperately needed materials, gather resources while defending against an unknown alien threat and improve your tower's and AI capabilities.
Offers
What are keyshops?Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Demo (1)
Try this game before buying.
About Project Astra Dominium

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...
Game details
Game details
Age ratings
Game modes
Languages
Audio & text: English
Text only: French, German, Spanish - Spain, Japanese, Korean, Portuguese - Brazil, Portuguese - Portugal, Simplified Chinese
Project Astra Dominium price history
Lowest tracked price: £2.87 (Jul 16, 2026) · current best: £2.90 across 2 stores.
Project Astra Dominium player count & reviews
90% positive reviews all-time · 0 peak players in the last 30 days.
Project Astra Dominium — frequently asked questions
Where can I buy Project Astra Dominium at the cheapest price?
Right now the cheapest offer for Project Astra Dominium is £2.90 at Eneba. KingsPrice compares 2 offers from 2 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Project Astra Dominium has ever been?
The lowest price KingsPrice has tracked for Project Astra Dominium is £2.87 (recorded on Jul 16, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Project Astra Dominium?
Project Astra Dominium peaked at 0 concurrent players on Steam in the last 30 days (highest on Jul 7, 2026). The player chart on this page updates daily.
Is it safe to buy a Project Astra Dominium Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Project Astra Dominium at a discount?
Create a free price alert on this page and KingsPrice will email you when Project Astra Dominium drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 or later (64-Bit)
- Processor: i5-3570 3.4 GHz 4 Core
- Memory: 8 GB RAM
- Graphics: Dedicated graphics card, GTX 970
- DirectX: Version 11
- Storage: 8 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 or later (64-Bit)
- Processor: i5-3570 3.4 GHz 8 Core
- Memory: 8 GB RAM
- Graphics: Dedicated graphics card, RTX 3080
- DirectX: Version 12
- Storage: 8 GB available space













