Screenshots
Watch trailer on Steam ↗SIRIUS-4
Triumvirate Games · Published by Triumvirate Games · Official site ↗
Mixed — 43% positive (23 reviews)
Last updated 27 Sept 2026
"Sirius-4" is a plot-oriented space simulator that gives the player complete freedom of action as a hired pilot of the "Sirius" unit. The action takes place on the outskirts of human space during a turbulent time for the galaxy after a global war.
£4.29
Lowest price we've ever recorded
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Price history
Adventure, Indie, Simulation, Early Access · 2025 · More under £5 games
Explore the untamed expanses of post-war space as a hired pilot for Sirius-4. Your decisions shape events in this open-ended adventure simulation, where every star system holds secrets and dangers alike.
About this game
Sirius-4 is a space simulator that gives the player complete freedom of action. The game takes place in a galaxy created using a level generator, which makes each new game session unique. There are various independent groups operating in these open spaces: pirates, fanatics and supranational interstellar corporations. The player is given a unique opportunity to explore this vast and vibrant world. Every time going into space, the player will be able to feel the pulse of humanity: hear the routine radio conversations of pilots and encounter ships tracking their routes. All this creates a unique atmosphere of a free pilot's life. All this is Sirius-4.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Intel Core i5-4670K 3.4GHz
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 1050 Ti 4GB
- Storage: 60 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10
- Processor: Intel Core i7-10700K
- Memory: 16 GB RAM
- Graphics: NVIDIA GeForce RTX 2080 SUPER
- Storage: 60 GB available space
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Update 0.7.6
- A global AI has been introduced, triggering an enemy invasion scenario in all star systems. Now you can participate in battles for the system: defend it or lose it, as well as recapture points that have already been captured, destroying enemy stations and ships. - Balancing ships and improving their dynamics for smoother and more realistic controls. - Improved AI behavior in combat, making confrontations more interesting and challenging. - Fast and furious mode is implemented by pressing Tab for fast movement.- Improved guns and their information systems to increase accuracy and efficiency. - Added a more visible entrance to the station to make it easier to navigate. - Redesigned the game launch process for a smoother start. - Track rings have been replaced with updated models with improved graphics. - Directional light indication is implemented in the track rings, which facilitates navigation. - There are anomalies in various systems, such as radiation zones and areas with high or low temperatures, adding variety and new tactical opportunities. - Mining of asteroids has been introduced: they can be destroyed by missiles and loot can be collected.Read full article on Community Announcements (GuD_Bobi)Patch NotesOfficial
Update 0.7.5
In this update, we have:- Fixed an issue that caused the game to freeze on high-resolution and 4K monitors. - Fixed critical bugs to improve stability. - Optimized the universe and location generation processes for faster loading and smoother performance. - Ensured that the interface displays correctly on high-resolution and 4K monitors, with all elements scaled appropriately to avoid small and difficult-to-read icons. Thank you for your support and feedback!Read full article on Community Announcements (GuD_Bobi)
