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Watch trailer on Steam ↗Galactum Meridian
Hedra Games · Published by Hedra Games · Official site ↗
Negative — 14% positive (14 reviews)
Last updated 28 Sept 2026
Lead humanity's first deep survey beyond Sol in a research-first space strategy game. Explore star systems, investigate worlds, deploy probes, and turn scientific discoveries into strategic power.
£15.97
£17.75Lowest price we've ever recorded
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Price history
Indie, Simulation, Strategy, Early Access · 2026 · More £15 - £30 games
About this game
Where Discovery Becomes Strategy
Galactum Meridian is a research-first space strategy game about leading humanity’s first deep survey beyond Sol.
Command the ISA Far Horizon, a deep-survey cruiser sent into nearby star systems where the map is incomplete, the data is uncertain, and every discovery changes what comes next. You are not here to paint borders across space with fleets. You are building the first working picture of humanity’s interstellar future.
Explore A Galaxy That Begins With The Real One
Galactum Meridian begins with real astronomical structure: nearby stars, confirmed exoplanet data where available, and catalog-backed system information drawn from sources such as the NASA Exoplanet Archive and other astronomy datasets.
But this is not a dry simulator. Known science gives the galaxy its backbone. From there, the game layers survey results, modeled possibilities, strange worlds, and speculative discoveries into systems you can investigate. Galactum Meridian brings in more than 10,000 actual stars from current star catalogs for you to travel to and investigate, updated frequently as new data becomes available.
Some things are observed. Some are inferred from what we know. Some are fictional, mysterious, and waiting for your expedition to discover them.
Lead The Far Horizon Expedition
The Far Horizon is more than a marker on a star map. It is your mobile observatory, laboratory, probe carrier, mission hub, and lifeline.
Survey star systems. Inspect planets and moons from orbit. Deploy probes, landers, rovers, and specialized field packages. Follow up on unusual readings. Turn raw evidence into research, mission priorities, and strategic authority.
Every system is a question. Every world is a record waiting to be discovered.
Science Is Your Tech Tree
Progression runs through the Research Atlas, a 3D branching map of expedition knowledge.
Instead of unlocking generic upgrades from a flat menu, you spend the insight earned from discoveries to improve probes, extend survey reach, strengthen Far Horizon support systems, and open new strategic options.
Geology, biology, climate science, stellar physics, and comparative planetology all matter. The better you understand the universe, the more capable your expedition becomes.
Control Through Knowledge, Not Conquest
Galactum Meridian reinterprets the 4X formula around science, survey rights, publication, and stewardship.
Explore unknown systems. Expand your research footprint. Convert discoveries into useful capabilities. Compete for authority through evidence and expedition presence rather than default empire-war logic.
Territory is represented as a 3D strategic stewardship layer: not just who owns a flat patch of space, but where your expedition has reach, credibility, and recognized scientific authority.
You Are Not The Only Expedition Out There
The ISA has sent more than one expedition into the frontier. Other crews are racing to publish first, secure Stewardship Authority, and shape the official record of what humanity finds beyond Sol.
But the race for scientific credibility may only be the beginning. Some readings do not fit the models. Some worlds preserve evidence that should not be there. Somewhere beyond the catalog data, the Far Horizon may uncover a discovery large enough to change what humanity thinks it knows about life, intelligence, and its place in the galaxy.
What You’ll Do
Navigate a readable 3D star map of nearby systems.
Survey stars, planets, moons, and more.
Work from real catalog data, then push into modeled and fictional unknowns.
Deploy probes, orbiters, landers, rovers, and field-study packages.
Investigate worlds through orbital views, surface studies, anomalies, fossils, terrain signals, and environmental hazards.
Convert discoveries into research through the 3D Research Atlas.
Build scientific authority and stewardship across interstellar space.
Follow mission briefings, crew records, Accord transmissions, and discovery archives aboard the Far Horizon.
For Players Who Want Space Strategy With A Sense Of Wonder
Galactum Meridian is for players who like space strategy, astronomy, exploration, and the feeling that a map becomes more valuable the more you understand it.
This is not a conquest-first empire game. It is a game about reaching outward carefully, asking better questions, and making hard strategic decisions from imperfect knowledge.
Language support: Galactum Meridian launches in English, with Simplified Chinese scheduled for the launch-day update. Additional languages, including German, are planned shortly afterward.
Explore a galaxy that begins with the real one.
Where discovery becomes strategy.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit
- Processor: Intel Core i5-8400 / AMD Ryzen 5 2600 or better
- Memory: 16 GB RAM
- Graphics: NVIDIA GeForce GTX 1060 6 GB / AMD Radeon RX 580 8 GB or better
- Storage: 25 GB available space
- Sound Card: Windows-compatible audio device
- VR Support: None
- Additional Notes: Requires a 64-bit processor and operating system, a Vulkan-capable graphics card with current drivers, and an SSD. Early Access requirements may be adjusted as hardware testing expands.
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 or 11 64-bit
- Processor: Intel Core i5-10400 / AMD Ryzen 5 3600 or better
- Memory: 16 GB RAM
- Graphics: NVIDIA GeForce RTX 2060 6 GB / AMD Radeon RX 5600 XT 6 GB or better
- Storage: 30 GB available space
- Sound Card: Windows-compatible audio device
- VR Support: None
- Additional Notes: SSD required. Requirements may be refined during Early Access as additional hardware configurations are tested.
Supported Languages
Latest news
Patch NotesOfficial
Galactum Meridian 0.3.0 — Language Expansion
This update expands language support throughout the game. - Added French localization. - Added German localization. - Added Russian localization. - Localized menus, settings, interface labels, mission objectives, research information, notifications, guidance, and other player-facing text. - Improved language switching across supported languages. - English and Simplified Chinese remain available. - Added additional checks for text wrapping and interface readability. This update does not change gameplay, progression, terrain, balance, or save data. Existing saved games remain compatible. Localization will continue to be refined. Please report any untranslated, unclear, or incorrectly displayed text in the Steam Discussions.Read full article on Community Announcements (Hedra Games)Patch NotesOfficial
Galactum Meridian Early Access Update 0.2.3
This update addresses a major source of recurring stuttering during probe research and introduces several interface and camera improvements. Probe monitoring performance: Fixed a major source of recurring stuttering and interface slowdowns while probes conduct ongoing research. Multiple active probes: Improved performance when several probes are monitoring locations simultaneously. Map responsiveness: Improved responsiveness when moving between the Star Map, System View, World View, and surface exploration while research is active. Accelerated time: Improved probe-research processing at higher expedition speeds. Rover camera: Smoothed the rover-follow camera over uneven terrain to reduce abrupt vertical bouncing. - Interface scaling: Added a 150% Interface Scale option for larger and higher-resolution displays. - Accessibility: Interface Scale and Text Size can now be adjusted independently up to 150%. Existing saved games remain compatible with this update.Read full article on Community Announcements (Hedra Games)Patch NotesOfficial
Galactum Meridian Early Access Hotfix 0.2.2
This update addresses stuttering and severe frame-rate drops that some players experienced after landing on a planet and driving a rover across its surface. What was causing the problem? Some planetary environments were loading and repeatedly updating far more decorative objects and terrain information than necessary. On certain computers—particularly lower-specification systems—this could cause the game to become progressively slower during surface exploration. What changed? Reduced the performance cost of dense planetary environments. Adjusted environmental detail according to the selected graphics quality. Prevented scenery from being unnecessarily rebuilt while the rover is moving. Stopped the game from preloading terrain assets that are not being used. Reduced repeated terrain, camera, and material calculations. Improved background loading when entering planetary surface missions. Corrected several sources of periodic pauses and traversal stuttering. These changes preserve planetary terrain, important landmarks, mission objectives, and scientific content while reducing unnecessary processing. Existing saved games remain compatible with this update. Thank you to everyone who reported these performance problems. Please continue letting us know if you encounter significant stuttering or unusually low frame rates during planetary exploration.Read full article on Community Announcements (Hedra Games)Patch NotesOfficial
Galactum Meridian 0.2.1 Patch Notes
Galactum Meridian 0.2.1 Patch Notes Released: September 1, 2026 Steam BuildID: 25065797 Localization - Added Simplified Chinese support across the interface, glossary, tooltips, scientific information, directives, and gameplay systems. - Added Simplified Chinese coverage for Field Studies, including objectives, terrain information, instrument readouts, evidence details, and expedition dates. - Added Simplified Chinese coverage for World View site summaries, planetary status information, moon context, and Field Study loading messages. - Added persistent language options for Automatic (Steam), English, and Simplified Chinese. - Added appropriate Chinese font support, wrapping, and compatibility with the existing interface and text-size controls. - Preserved English fallback text where localized content is unavailable. - Kept localized presentation text separate from campaign save data so language changes do not alter expedition progress. - Improved date handling so supplied campaign dates remain visible when structured calendar information is unavailable. Interface and accessibility - Added a directly visible Exit To Desktop button to Options And Help. - Fixed excessive vertical spacing in selected-planet information after loading a saved game. - Improved the Star Map world-marker legend at enlarged text sizes. Gameplay and progression - Fixed the Research Atlas failing to refresh after research was earned while the Atlas was closed. - Newly earned research balances and eligible upgrades now appear correctly whenever the Research Atlas is reopened. - Fixed Vespera I opening Field Studies potentially requiring capabilities that the recommended probe did not possess. - Vespera I’s recommended probes can now complete their intended opening studies without creating an unrecoverable deployment blocker. Save compatibility - Existing expedition saves remain compatible with this update. - Language settings remain machine-local and do not modify canonical campaign state. - Exi...Read full article on Community Announcements (Hedra Games)AnnouncementsOfficial
Galactum Meridian is now available!
Galactum Meridian is now available on Steam in Early Access.Thank you to everyone who followed the game, added it to their wishlist, participated in playtesting, and shared feedback during development.Begin the Far Horizon expedition and explore a 3D star map containing more than 10,000 cataloged stars (and >500 confirmed exoplanets). Land on planetary surfaces, conduct field research, study unfamiliar worlds, deploy scientific probes, and build the knowledge needed to gain stewardship over star systems.This is a science-focused 4X game built around exploration, discovery, research, and long-term planning.Development will continue throughout Early Access, with new systems, improvements, and community-informed changes planned for future updates. Your feedback is welcome in the Steam Community Hub.Thank you for joining the expedition.— Hedra GamesRead full article on Community Announcements (Hedra Games)
