
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
Modeled estimate, not a reported figure. How we estimate →
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About
In Mars Horizon, you take control of a major space agency, leading it from the dawn of the space age through to landing astronauts on Mars. Guide your agency through the space race and write your alternate history of space travel - any of the agencies can be the first to land on The Moon if you make the right choices. Manage the numerous challenges faced then and now:
Create your own space agency and base with launch pads, research labs, astronaut training facilities, and much more
Construct custom vehicles from hundreds of combinations
Launch satellites and crewed spacecraft to explore the Solar System
Run mission control as you solve the various challenges of turn-based missions to earn scientific advancement and public support
Recreate famous missions conducted by NASA, ESA and CNSA - including the Perseverance Rover, Ingenuity Helicopter, Zhurong Rover and Rosetta space probe missions.
Explore an extensive tech tree and compete or collaborate with other agencies to plot your roadmap to Mars
Choose from five unique space agencies, each with their own traits, base, vehicles, and spacecraft
Build with unlimited freedom in a fully-customisable Sandbox Mode
You’re in charge of every element of the journey into space: success rides on your decisions.
Will you push to stay ahead of the other agencies, or focus on testing and research? There are multiple ways to ensure the first person on Mars is under your command. Every choice matters: will you invest in the most advanced technology or take risks in the rush to the red planet?
Using actual events and missions as inspiration, can you handle the challenges faced by real space agencies?
Management is a vital aspect of Mars Horizon. You'll need to design and build the right spacecraft, hire and train the crew, and make strategic decisions as mission control to survive the journey to Mars.
Enter into diplomatic partnerships with other agencies to share the rewards of space exploration, or risk going it alone to gain greater prestige. Construct the ideal rocket from historically-inspired vehicle parts. Hire contractors to construct vehicles and use their unique benefits to gain a key edge over your competitors.
Launching a payload into space is only the first step. In assuming the role of Flight Director of mission control, you'll need to manage your spacecraft's resources and solve strategic challenges in turn-based missions in order to succeed. But beware: space is a very unforgiving environment.
These are the critical moment-to-moment decisions of mission control; do you spend power to fix a malfunctioning antenna or save it in case of an oxygen leak? Perhaps risking that extra three months of mission planning could have avoided this issue?
Mars Horizon has been made with the input and support of the European Space Agency (ESA) and the UK Space Agency.
We’ve collaborated with numerous experts in space exploration from the ESA in creating Mars Horizon. From engineers developing the technology used in Mars programmes, to those designing the next generation of missions, bringing an unprecedented level of authenticity, realism and legitimacy to the gameplay and its scenarios.
Dig deeper into the game via our podcast, including discussions with staff from the European Space Agency and UK Space Agency. Check out the podcast in the Steam forums or the main site.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Engagement
Hours played at review time, across 41 reviews with recorded playtime.
Reviews
Themes across 40 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
I generally enjoyed playing the game and from a historical perspective it makes sense that progress is slow but it feels REALLY slow. Perhaps it is the UI or simply the gameplay loop but it constantly feels like you are doing lots of waiting until you get to an interesting event like a launch. It's a decent game on the whole and I give it 6.5/10.
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pijj
Holy. For such a simple looking game its actualy pretty good. Rocket building might not be the most advanced system, as well as with the tech tree being pretty stiff and not allowing for anything crazy. But the turn based resoruce managment of controling the probe or rocket is extremley fun.
Cool space agency management game with nifty historical space nerd stuff. However it is buried beneath some of the most repetitive RNG-based "gameplay" I've ever seen and generally gets boring pretty quick. Hoping the sequel is a bit better. Wish I could give this a neutral review as many people might enjoy it. But it's not for me.
Weltraum geil.
This game started out good. It SUCKS after 5 yes 5 attempt to do the F_____G space walk. Finished ALL THE TASKS JUST TO WATCH THE CAPSUL DRIFT OFF DURING REENTRY! I WOULD RETURN IT IF I COULD!!!!!!
Amazing game. Highly recommended for anyone who loves space exploration. There have been similar games before, but this one is better. It strikes the perfect balance in terms of complexity. It’s challenging enough to be a test, yet still fun. It does a great job of showing what the space race must have been like, and it’s a real thrill when you’re the first to achieve something, though there are many different paths to that goal.
What would it be like if Ugandans were the ones who sent the first human into space? Or the first chimpanzee to go to Mars...
👍
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Trends
Modeled estimate over time, reconstructed from Steam's monthly review histogram.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Languages: English, French, German, Spanish - Spain, Japanese, Russian, Simplified Chinese, Portuguese - Brazil
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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