Games like Mars Horizon on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Mars Horizon are available at the bottom of the page.
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Buzz Aldrin's Space Program Manager
Space Program Manager (SPM) is the ultimate game of space exploration. It is the mid 1950s and the race for dominance between the US and the Soviet Union is about to move into a new dimension: space.
Terraforming Mars
The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water.
EarthX
EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars!
Imperium Galactica II
Reintroducing a classic from the golden era of gaming, the original empire building space RTS, Imperium Galactica 2 is back and looking better than ever with new high-res textures and vivid colors.
Let's School
Dive into the exhilarating role of a headmaster entrusted to revive your alma mater! Beyond just bricks and mortar, train teachers, recruit students. Sculpt your school into a unique educational haven! Let's School!
Space industrial empire
This is a idle game modeled on industrial building gameplay. It will be three-dimensional, complex industrial assembly line, easy, simple plane conveyor belt. At the same time to join the battleship assembly, space campaign, character development, giant construction, trade orders and other gameplay!
shapez 2
Dive into a factory-building game with the focus on just that – building huge space factories! Construct sprawling multi-level factories and satisfying production lines without limits. Tackle increasingly complex automation challenges at your own pace – you won’t have to worry about enemies.
X3: Reunion
X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue.
Breachway
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
Space Empires V
Space Empires V is the latest edition in the Space Empires series. This new chapter completely updates the UI and takes the player into a real-time rendered 3D universe. Watch space battles played out in glorious detail and realistic effects. Expand, Explore, Exploit, and Exterminate in a huge living breathing galaxy.
911 Operator
Game about the difficult work of people that manage emergency lines and services. Answer incoming calls and react properly - give first aid instructions, advise, dispatch correct number of firemen / police / ambulances, or sometimes - just ignore the call. Play on ANY CITY in the world!
Sword of the Stars: Complete Collection
Sword of the Stars: Complete Collection is the original Sword of the Stars games and the three expansions Born of Blood, A Murder of Crows and Argos Naval Yard. It is the year 2405, and human scientists have discovered a new technology that allows travel from star to star at speeds faster than light.
NEBULOUS: Fleet Command
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
X: Beyond the Frontier
The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.
Railway Empire
In Railway Empire, you will create an elaborate and wide-ranging rail network, purchase over 40 different trains modelled in extraordinary detail, and buy or build railway stations, maintenance buildings, factories and tourist attractions to keep your travel network ahead of the competition.
Espresso Tycoon
Espresso Tycoon - a coffee shop simulator. Create your brand, decorate the coffee shop, manage your employees, and take care of your customers. Use the 3D coffee editor to create coffee recipes, order supplies, and collect rating points. Build the whole coffee business and complete all the missions!
GearCity
Do you find tycoon games too simplistic? GearCity is a complex and in-depth business simulator. It focuses on a realistic economic simulation of the global automobile industry. The game takes several hours to grasp and hundreds of hours to master. Can you succeed where many other CEOs have failed?
Railroad Corporation
Relive the pioneering spirit of the Golden Age of Steam by establishing your own railroad empire across 19th century North America. Bring settlements together, produce and trade goods and develop new technologies to stay ahead of the competition. Want more? RAILROAD CORPORATION 2 Out Now!
Planets Under Attack
Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies.
Startopia
A once thriving network of space stations and planets have been left lifeless, redundant scars of the apocalypse. Into this age of darkness comes light. You will lead the way in rebuilding the network of space stations to a standard accepted by the individual alien races, attracting them to harness their expertise and research new...
Bounty Train
Explore the dangerous life, the accurate historic events and contemporary inventions of the North American/US 19th century. Acquire one of the most legendary steam machines and transform it into a fortress on rails.
Farlanders
Terraform, strategize, and construct a Martian colony in this retro-inspired turn-based city builder. Create a comfortable living for your citizens, research alien artifacts, and uncover the secrets of the Red Planet.
Two Point Campus
Build the university of your dreams with Two Point Campus, the sim with a twist from the makers of Two Point Hospital. Build, hire staff and run an academic institution packed with wild courses.
Railroad Tycoon 3
Railroad Tycoon 3 features 25 scenarios challenging players to recreate magnificent feats of railroading history from around the world. Players can lay track (including tunnels and overpasses), pick from over 40 locomotives from early steams to modern bullets, choose to haul over 35 types of cargo in a dynamic economy, and participate in...
Most played games like Mars Horizon on Steam
Take a look at the top games like Mars Horizon that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.
1. Kerbal Space Program
Similarity 40% In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Kerbal Space Program is a space, simulation and sandbox game developed by Squad and published by Private Division. Released on April 27th 2015 has received 127,162 reviews of which 121,084 were positive and 6,078 were negative resulting in an impressive rating of 9.4 out of 10. The game has hit the top spot as the #1 most played game like Mars Horizon, thanks to its 2,138 peak concurrent players over the last day.
9.4
121,084
6,078
2,138
players
2. shapez 2
Similarity 44% Dive into a factory-building game with the focus on just that – building huge space factories! Construct sprawling multi-level factories and satisfying production lines without limits. Tackle increasingly complex automation challenges at your own pace – you won’t have to worry about enemies. shapez 2 is a management, strategy and automation game developed by tobspr Games and published by tobspr Games and Gamirror Games. Released on August 15th 2024 has received 11,061 reviews of which 10,856 were positive and 205 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 1,563 players online at once in the last 24 hours, this game is currently ranked #2 among games like Mars Horizon based on player count.
9.5
10,856
205
1,563
players
3. Terraforming Mars
Similarity 51% The taming of the Red Planet has begun! Corporations are competing to transform Mars into a habitable planet by spending vast resources and using innovative technology to raise temperature, create a breathable atmosphere, and make oceans of water. Terraforming Mars is a strategy, board game and space game developed by Artefacts Studio and published by Twin Sails Interactive. Released on October 17th 2018 has received 6,629 reviews of which 4,758 were positive and 1,871 were negative resulting in a rating of 7.0 out of 10. While seeing 394 players online at once in the last 24 hours, this game is currently ranked #3 among games like Mars Horizon based on player count.
7.0
4,758
1,871
394
players
4. Master of Orion
Similarity 40% The ascendant spacefaring 4X strategy game returns! A new chapter in the epic Master of Orion saga is poised to once again capture the imaginations of millions of gamers. Master of Orion is a strategy, 4x and space game developed by NGD Studios and published by Wargaming Labs. Released on August 25th 2016 has received 7,918 reviews of which 6,076 were positive and 1,842 were negative resulting in a rating of 7.5 out of 10. With 341 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Mars Horizon.
7.5
6,076
1,842
341
players
5. NEBULOUS: Fleet Command
Similarity 42% Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other. NEBULOUS: Fleet Command is a strategy, space and simulation game developed by Eridanus Industries and published by Hooded Horse. Released on February 11th 2022 has received 3,536 reviews of which 2,915 were positive and 621 were negative resulting in a rating of 8.0 out of 10. With 232 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Mars Horizon.
8.0
2,915
621
232
players
6. RollerCoaster Tycoon® 3: Complete Edition
Similarity 41% Build the park of a lifetime and rediscover the critically acclaimed rollercoaster simulation bestseller. Feel the thrill of a genre-defining classic, complete with two huge expansion packs. RollerCoaster Tycoon® 3: Complete Edition is a management, strategy and building game developed by Frontier Developments and Aspyr (Mac) and published by Aspyr (Mac) and Atari. Released on September 24th 2020 has received 2,460 reviews of which 2,145 were positive and 315 were negative resulting in a rating of 8.4 out of 10. With 226 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Mars Horizon.
8.4
2,145
315
226
players
7. Two Point Campus
Similarity 40% Build the university of your dreams with Two Point Campus, the sim with a twist from the makers of Two Point Hospital. Build, hire staff and run an academic institution packed with wild courses. Two Point Campus is a management, simulation and building game developed by Two Point Studios and published by SEGA. Released on August 09th 2022 has received 6,534 reviews of which 5,711 were positive and 823 were negative resulting in a rating of 8.5 out of 10. With 200 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Mars Horizon.
8.5
5,711
823
200
players
8. Master of Orion 2
Similarity 40% Forge an empire in a universe where population growth is stripping away planetary resources. Colonize unknown planets and trade with other races for their knowledge. Master of Orion 2 is a strategy, 4x and turn-based game developed by SimTex and published by Wargaming Labs. Released on February 25th 2016 has received 1,569 reviews of which 1,514 were positive and 55 were negative resulting in an impressive rating of 9.1 out of 10. With 197 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Mars Horizon.
9.1
1,514
55
197
players
9. IXION
Similarity 40% IXION is an unrelenting, city-building odyssey across the stars. As Administrator of the Tiqqun, DOLOS’ prototype space station, you are tasked with balancing preservation and exploration as you manage infrastructure, resources and crew. Can you keep the flame of humanity alight in the cold dark? IXION is a space, city builder and strategy game developed by Bulwark Studios and published by Kasedo Games. Released on December 07th 2022 has received 15,689 reviews of which 12,290 were positive and 3,399 were negative resulting in a rating of 7.7 out of 10. With 166 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Mars Horizon.
7.7
12,290
3,399
166
players
10. Railway Empire
Similarity 42% In Railway Empire, you will create an elaborate and wide-ranging rail network, purchase over 40 different trains modelled in extraordinary detail, and buy or build railway stations, maintenance buildings, factories and tourist attractions to keep your travel network ahead of the competition. Railway Empire is a strategy, simulation and management game developed by Gaming Minds Studios and published by Kalypso Media. Released on January 26th 2018 has received 9,416 reviews of which 7,797 were positive and 1,619 were negative resulting in a rating of 8.1 out of 10. With 122 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Mars Horizon.
8.1
7,797
1,619
122
players
Best deals on games like Mars Horizon on Steam
Discover fantastic savings with the best discounts on a variety of games like Mars Horizon available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Mars Horizon.
1. EarthX
Similarity 50% EarthX is a rocket company management game. Go from launching small rockets on Earth to eventually building a colony on Mars. Create your own Internet constellation, develop new technologies, supply the International Space Station and terraform Mars! EarthX is a simulation, indie and strategy game developed by Denis and Ry and published by Mesote Games. Released on July 12th 2023 has received 875 reviews of which 769 were positive and 106 were negative resulting in a rating of 8.3 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Mars Horizon.
8.3
769
106
-99%
19.99€
0.29€
2. Railroad Corporation
Similarity 42% Relive the pioneering spirit of the Golden Age of Steam by establishing your own railroad empire across 19th century North America. Bring settlements together, produce and trade goods and develop new technologies to stay ahead of the competition. Want more? RAILROAD CORPORATION 2 Out Now! Railroad Corporation is a strategy, trains and management game developed by Corbie Games and published by Iceberg Interactive. Released on November 18th 2019 has received 1,387 reviews of which 1,028 were positive and 359 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Mars Horizon.
7.1
1,028
359
-99%
35.10€
0.44€
3. Railroad Tycoon 3
Similarity 40% Railroad Tycoon 3 features 25 scenarios challenging players to recreate magnificent feats of railroading history from around the world. Players can lay track (including tunnels and overpasses), pick from over 40 locomotives from early steams to modern bullets, choose to haul over 35 types of cargo in a dynamic economy, and participate in... Railroad Tycoon 3 is a management, strategy and trains game developed by PopTop and published by 2K. Released on May 04th 2007 has received 1,169 reviews of which 900 were positive and 269 were negative resulting in a rating of 7.4 out of 10. Thanks to its incredible 98% discount, this game is now the #3 best deal in games like Mars Horizon.
7.4
900
269
-98%
9.99€
0.25€
4. Buzz Aldrin's Space Program Manager
Similarity 57% Space Program Manager (SPM) is the ultimate game of space exploration. It is the mid 1950s and the race for dominance between the US and the Soviet Union is about to move into a new dimension: space. Buzz Aldrin's Space Program Manager is a simulation, strategy and space game developed by Polar Motion and published by Slitherine Ltd.. Released on October 31st 2014 has received 479 reviews of which 369 were positive and 110 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for games like Mars Horizon.
7.3
369
110
-98%
28.99€
0.74€
5. Planets Under Attack
Similarity 42% Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies. Planets Under Attack is a strategy, indie and space game developed by Targem Games and published by TopWare Interactive. Released on September 27th 2012 has received 1,119 reviews of which 808 were positive and 311 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Mars Horizon.
7.0
808
311
-98%
11.79€
0.26€
6. Juno: New Origins
Similarity 40% Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode. Juno: New Origins is a building, science and space sim game developed and published by Jundroo and LLC. Released on January 26th 2023 has received 3,118 reviews of which 2,807 were positive and 311 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 97% discount, this title has earned the #6 position in the best deals for games like Mars Horizon.
8.7
2,807
311
-97%
19.50€
0.64€
7. Little Big Workshop
Similarity 40% Manage your workers, stations, machines and create awesome stuff as your little big workshop grows into your dream factory! Little Big Workshop is a simulation, strategy and management game developed by Mirage Game Studios and published by HandyGames. Released on October 17th 2019 has received 3,266 reviews of which 2,731 were positive and 535 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 97% discount, this title has earned the #7 position in the best deals for games like Mars Horizon.
8.1
2,731
535
-97%
19.99€
0.66€
8. Railway Empire
Similarity 42% In Railway Empire, you will create an elaborate and wide-ranging rail network, purchase over 40 different trains modelled in extraordinary detail, and buy or build railway stations, maintenance buildings, factories and tourist attractions to keep your travel network ahead of the competition. Railway Empire is a strategy, simulation and management game developed by Gaming Minds Studios and published by Kalypso Media. Released on January 26th 2018 has received 9,416 reviews of which 7,797 were positive and 1,619 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 97% discount, this title has earned the #8 position in the best deals for games like Mars Horizon.
8.1
7,797
1,619
-97%
29.99€
0.93€
9. Railroad Corporation
Similarity 42% Relive the pioneering spirit of the Golden Age of Steam by establishing your own railroad empire across 19th century North America. Bring settlements together, produce and trade goods and develop new technologies to stay ahead of the competition. Want more? RAILROAD CORPORATION 2 Out Now! Railroad Corporation is a game developed and published by . Released on November 18th 2019 has received 1,387 reviews of which 1,028 were positive and 359 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #9 position in the best deals for games like Mars Horizon.
7.1
1,028
359
-99%
35.10€
0.44€
10. 911 Operator
Similarity 43% Game about the difficult work of people that manage emergency lines and services. Answer incoming calls and react properly - give first aid instructions, advise, dispatch correct number of firemen / police / ambulances, or sometimes - just ignore the call. Play on ANY CITY in the world! 911 Operator is a simulation, strategy and management game developed by Jutsu Games and published by Games Operators. Released on February 24th 2017 has received 16,435 reviews of which 14,616 were positive and 1,819 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 96% discount, this title has earned the #10 position in the best deals for games like Mars Horizon.
8.7
14,616
1,819
-96%
14.99€
0.74€
Free games like Mars Horizon on Steam
Check out this fantastic list of free-to-play games like Mars Horizon you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Mars Horizon.
1. 1980
Similarity 40% Welcome to the 1980s! This is a city which just started to develop, and you're in charge of this small urban village. How will the city's future be tied to this place? Manage your land, construct new buildings, explore the stories, and find out the ultimate fate of this urban village! 1980 is a strategy, management and city builder game developed and published by Merxon22. Released on August 31st 2020 has received 672 reviews of which 601 were positive and 71 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #1 spot among the most played free games like Mars Horizon.
8.4
601
71