Solar Expanse - Space Exploration Manager
by SpaceOps · Apr 9, 2026
169 downloads
About the Game
In Solar Expanse, you take the lead of one of the early XXI century space exploration companies. Your goal will be to reach the planets, moons and asteroids of the system in order to mine and colonize them.
Optimize the costs and schedule of the flights. Mind that each object is in constant motion, so exact planning is crucial. Utilize the gravity effects and slingshot your rockets further beyond.
There is a multitude of objects in the asteroid belt alone. Some are made of water, others might contain precious metals. Deploy various telescopes, arrays and probes to know the system better and plan your next flights. Scan for the most profitable and useful materials. Research new technologies
Send your rockets and deliver the asteroids to Earth or colonies. Gain the profits to expand your corporation and start the projects on much larger scale.
In time, you will get contracts to establish permanent bases on various objects. Build fuel stations, launch sites, space catapults, elevators and entire colonies!
Your ultimate goal will be to make the moons and planets of different systems habitable. This task will take centuries, enormous resources, technologies and thousands of rocket flights. Drop the water asteroids from the asteroid belt on Mars. Mine Io and Titan for necessary resources.
Once you are done with the Solar System, build an interstellar ship. Once the game is fully released, you'll be able to venture into real and generated systems, such as Alpha & Proxima, Centauri, Trappist, Gliese & Kepler… you name them!
Screenshots
9 images
Version Information
Steam Patch Notes
Official update history
Greetings Space Explorers!
This time we're bringing you a lot of fixes and improvements tested on open_beta branch to default with new 0.26.6.3.14 BETA build! Enjoy!
If you preferred the previous default build, make sure to switch to the "previous" branch!
Changes:
you no longer need same amount of LV's as SC's to be able to plan a mission
research rework and rebalance (including researches to extract additional resources!)
same modules icons are now stacked in the mission planning and info panel
added supplies amount in mission planning summary
added agriculture complex
asteroids cannot be removed if they’re being pushed
added a starting screen to follow the publisher page
added a Metis spacecraft for followers
minor layout and visual improvements
added some tooltips
Fixes:
possible issues with water ice extractor / mining module resource extracting
space elevator resources duplication
solar sail / EMC requiring fuel
incorrect SC / LV's state after launching mission and save/loading
facilities not always working correctly
generated asteroids remain in object info panel after crashing into object/deleting them in orbit
multiple asteroid engines not fully transporting on missions
resources duplication by cancelling queued module / facility construction
free Stratos flights to orbits
solar sails consuming fuel
on high FPS and monitors well above 60 hz, game would feel like it's 60 fps
can't cancel module and then ship it on a mission
incorrect display of upkeep and supplies on easy mode
multiple notification sounds overlapping
comet trails visible on planets’ orbits
several exceptions and crashes
Known issues:
energy production / usage may not display steadily
camera spins when focused on comet on orbit
Earth deterraformation happens too fast
launching the game issues (black screen) on uncommon multi-screen setups. Please refer to FAQ for a workaround.
some of the translated texts might be inaccurate
Please keep in mind that some of the fixes might require you to start a new game to work - otherwise some fixed bugs might still appear in older saves. Many other malfunctions can be fixed temporarily by reloading the game.
Thank you for your ongoing support! And yes, we keep working on the UI!
SpaceOps Team
Greetings Space Explorers!
A new build, 0.26.5.21.13 BETA just made it to the default branch! This build introduces several fixes, balance and QoL changes! Make sure to give it a try!
If you preferred the previous default build, make sure to switch to the "previous" branch!
Changes:
added passive income from colonists (humans on other objects)
button ‘x’ added to facilities and modules in construction queue for easy cancelling
removed ‘enable tutorial’ option for all eras, now the tutorial is enabled by default in the Early Exploration era (can still be skipped once the game is started)
Al-Ice rockets reworked and readded
several research balances and changes
time paused on cyclical mission creation
optimal cargo amount info during mission planning
new layout for certain tooltips
replaced several AI arts
some new tooltips and extra info
Fixes:
disappearing asteroid engines on asteroid impact
small fixes for optimal cargo amount calculations
adjustments for launch cost to orbit with SC only
research bonus to Atlas from fusion propellant research
facilities switching on and off constantly when without power
solar spacecraft needing fuel in orbits
next crew module added is empty, if previous one was set to empty
multiple SC's wrong capacity in mission planning
cargo teleported to destination if the gravity assist mission is cancelled
EMC catapult breaking in cyclical mission potential fix
cyclical missions stopping without reason
licence costs being multiplied with mining research
multi SC mission not returning with all sent SC
doubling mission panels
disappearing + button for adding modules
negative numbers of humans in habitats
orbital mirror works after save/load
LV reusability progress fixed
asteroids shrinking
SC's won't delete when canceling multiple gravitational assist missions
hydrogen power plant water deposit method adjusted
buying propellant in mission planning minor fixes
notifications from facilities on asteroid after crashing asteroid
fuel vanishing after flying to some objects
several crashes and exceptions
various performance optimisations and stutter reduction
minor UI and graphical improvements
Known issues:
incorrect SC/LV's/research state after launching mission and save/loading
hydroponic farms stop consuming carbon - save/load as a workaround
energy production/usage may not display steadily
optimal cargo amount info may display incorrectly
Stratos flights from planets to orbits cost 0 fuel - some fixes were introduced, but the problem still persists in some cases
launching the game issues (black screen) on uncommon multi-screen setups. Known workaround: https://steamcommunity.com/app/1369700/discussions/0/802344445710216010/
Earth deterraformation happens too fast
Thank you for all the kind words in discussions and reviews! 😀 Let us know what you think about the changes!
See you in space!
SpaceOps Team
Greetings, Space Explorers!
We have just released a new build with hotfix #3, 0.26.4.29.11 BETA to the default branch! It introduces some fixes, balance, and QoL changes! Give it a try! If you encounter any issues that make the experience worse for you, feel free to switch to the previous default build on the previous branch (right click on Solar Expanse in Steam library -> properties -> betas -> previous).
Changes:
- rebalanced difficulty levels
- rebalanced resource deposits on objects: Venus, Luna, Uranus, Neptune, and Pluto
- rebalanced computing research
- unified deposits from dropped asteroids
- added ‘+’ button to modules in cargo (shift+click adds 10)
- added more information in SC and LV tooltips and panels
- default priority for facilities is 5, adjustable 0 to 10
- habitats spaces show occupancy
- balanced CO2 and water refining
- added 'Continue' button and autosave on quitting game
- replaced AI arts and Advisor with human-made assets
- added two music tracks
Fixes:
- cyclical mission bug causing transfers not to wait for filling up cargo
- randomising asteroid names after save/load
- research progress not saved while changing queue
- difficulty levels info not displaying correctly
- duplication method by space elevator unhooking from asteroid
- 'extreme toxicity environment' appearing when it shouldn't, causing habitability/supplies consumption issues
- "Mars 2050" achievement description clarified
- generated asteroids orbiting the void instead of the solar orbit
- pushing generated asteroids no longer teleports them
- fixed tutorial for "Trading on Earth"
- cyclical mission "on resource count" automatically adds resources
- incorrect Atlas requirements for asteroids
- visual trajectories of asteroids
- space elevators using fuel
- FPS drops
- incorrect mass for Phobos and Deimos
- major crashes and exceptions
- corrections in translations
Known issues:
- loading older saves with gameplays after dropping asteroids might cause the game to spawn a huge number of extra asteroids - new games started after the update don't have this issue
- orbital mirrors may reset on save/load
- Stratos flights from non-Earth objects to their orbit cost no fuel
- launching issues on multi-screen setups. See the FAQ topic for the workaround
- Earth deterraformation happens too fast
- some of the translations might be inaccurate
The following bugfixes might take longer as we're focusing on improving QoL and new features for our future milestone.
See you in space!
SpaceOps Team
Greetings Space explorers!
We have just released a new build, 0.26.4.17.8 BETA! This build introduces some of the critical fixes and changes! If you encounter new issues or preferred the previous default build, you can switch to branch 'previous' in the game's library settings on Steam.
Changes:
added difficulty options (basic multipliers as of now, might not be displayed properly on the following screens)
replaced planet images, contract windows, market and research arts made with help of AI with the game’s screenshots, and NASA and other photos
updated descriptions on ‘RESOURCE TRANSFERRED’ cyclical mission condition to clarify its function
updated Brazilian Portuguese, Japanese, Italian, Korean, and Spanish translation
shortened sound of click
small earth landscape improvement
Fixes:
mission progress over 100% when planning two Atlas missions at once
not visible colonised planet lights
FPS drops after 2070
loss of fuel when cancelling mission in planning
constant acceleration flights starting from Sun
fix preventing late game saves breaking in rare scenarios
exhaust velocity in SC panel displaying wrong amount
fixed interstellar assembly/ship lacking habitat spaces
tooltip fixes and improvements
minor fixes for cyclical missions (display of cargo in mission list section, notification spam)
fixed the most common crashes and exceptions
Known issues:
the values on the screens following the difficulty choice screen are not displayed properly, but are still in effect
Stratos flights from non-Earth objects to their orbit costs no fuel
constant acceleration flights starting from Sun
fix preventing late game saves breaking in rare scenarios
launching the game issues on uncommon multi-screen setups. Known workaround: https://steamcommunity.com/app/1369700/discussions/0/802344445710216010/
exhaust velocity in SC panel displaying wrong amount
fixed interstellar assembly/ship lacking habitat spaces
competition buying offers for huge amounts of money
Earth deterraforming too fast
some of the translated texts might not fit the UI perfectly in a few places, or be inaccurate.
We’re aware of your requests regarding cyclical missions and UI, but addressing them will take time.
Thank you for your ongoing feedback and support!
SpaceOps Team
Do you enjoy space games? Do you like terraforming? How about terraforming Mars not in one, but in two games?
You can get the brand new Solar Expanse together with players' favourite, Per Aspera!
[img src="{STEAM_CLAN_IMAGE}/38448667/b92e704cf1ebd07845971f9a01eec6eb40f7a1ba.jpg"]
Solar Expanse
Explore the Solar System. Mine and drop asteroids. Colonize and terraform. Lead the space race and compete with other corporations on your way to profit. Watch the expansion of human race over the centuries.
Per Aspera
Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.
Complete the Set
The bundle is a “complete the set” bundle, which means that you will pay for and receive just the items you do not already own in your Steam Library at the discounted price.
[dynamiclink href="https://store.steampowered.com/bundle/71086/Solar_Expanse_x_Per_Aspera/"]
Greetings Space Explorers!
Check out the new release build candidate v0.26.4.8.14 BETA! This build introduces several fixes and minor rebalances!
Changes:
changed the game’s font
minor research rebalance
minor UI clarity improvements.
Fixes:
facilities sometimes not working
wrong asteroid engines count
LV/SC's not disappearing from list upon planning mission
"Multiplanetary Species" achievement no longer counts people on Earth
fixed abnormal fuel amount required by atlas to push asteroids
atlas cargo capacity adjusted
wrong production/consumption tooltip display
other tooltip fixes
most common cyclical missions issues
language corrections.
Known issues:
some of the translated texts might not fit the UI perfectly in a few places, or be inaccurate, especially for Italian, Korean, Japanese, and Spanish (machine translations).
See you in space!
SpaceOps Team
Greetings Space Explorers!
Check out the new release build candidate v0.26.4.3.13 BETA! This build introduces translations into several languages, so make sure to play in your own language and let us know about any issues!
Changes:
added German, French, Russian, Chinese (simplified), Italian, Korean, Japanese, and Spanish translations
rebalanced later starting eras
rebalanced researches length
rebalanced research lab bonus
other corporations playable from every epoch
research length rebalance
visual adjustments in research tree
Shift+click to queue creation of 10 facilities
resources not present on object won't show in mission cargo select (excludes cyclical mission)
added shortcuts for camera elevation
UI adjustments and optimisations
Fixes:
sun no longer being automatically observed
cannot move single construction equipment from object
habitat facilities recover properly after power loss
missions sometimes appearing in sun
resources disappearing when launching more than one SC at once
issues with starting states of other corporations
issues with AI fulfilling offers
issues with some contracts completion
some notifications wrongly displayed
Known issues:
some of the translated texts might not fit the UI perfectly in a few places, or be inaccurate, especially for Italian, Korean, Japanese, and Spanish (machine translations)
See you in space!
SpaceOps Team
Current Release
23010283
Uploaded May 05, 2026
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System Requirements
How to Install
Solar Expanse.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
1.6 GB
23010283
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Download Solar Expanse - Space Exploration Manager for PC with a direct link or via torrent. Get the full version of Solar Expanse - Space Exploration Manager for free. Solar Expanse - Space Exploration Manager is a Indie released by SpaceOps.