Games like X4: Foundations on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like X4: Foundations are available at the bottom of the page.
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X3: Terran Conflict
It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome!
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.
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.
X2: The Threat
X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe.
Avorion
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Frontier Pilot Simulator
FPS is a Sci-Fi cargo pilot sim, with an engaging emergent mission-driven storyline, with a real-time economy with free flight and trading, on an alien world to explore. All in customizable upgradeable, well-simulated VTOL craft with real weather, and flight dynamics.
Endless Sky
Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.
Evochron Legacy SE
Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.
Void Destroyer 2
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
Starpoint Gemini Warlords
Strategy from the front lines! Starpoint Gemini Warlords combines 3rd person capital spaceship combat with 4X strategy and RPG gameplay elements. Build mighty war fleets and send them into battle or lead them into combat yourself. Become the Warlord and conquer the Gemini system!
United Penguin Kingdom
A city-building game where you build a penguin settlement and satisfy the various needs of your penguins while dealing with seals and killer whales. Enjoy the growth of your settlement, become the king, and lead the United Penguin Kingdom.
Solargene
Lead a space corporation in the sci-fi simulator Solargene! Manage personnel, design and develop colonies and orbital stations throughout the solar system! Extract resources, establish logistics, research new technologies, trade and complete missions
Between the Stars
Become the Captain of an interstellar cruiser and journey across the galaxy to save the Republic. During your journey you will have to make important decisions, improve the weaponry of your ship and fight against numerous enemies.
Sins of a Solar Empire®: Rebellion
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.
Anno 2205™
In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.
Elite Dangerous
Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic.
Prosperous Universe
In Prosperous Universe start your galactic empire by trading on the real-time market exchange with other real players. Build your 1st base from humble beginnings & watch as your business flourishes with complex supply chain strategies. Economics, politics & realism fuel this immersive business MMO.
Space Haven
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Oxygen Not Included
Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.
Space Colony: Steam Edition
Space Colony: Steam Edition is a remaster of the real-time base builder and strategy game from Firefly Studios, creators of the Stronghold series. In Space Colony you colonize to survive, designing intergalactic bases that keep your crew productive, happy and defended against hostile alien threats.
Evochron Mercenary
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
Flight Of Nova
Flight of Nova is a simulator based on newtonian mechanics in which you control spacecraft in the Noren star system. You fly multiple types of spacecraft doing transport and search missions in an environment with realistic aerodynamics and orbital physics.
Interstellar Rift
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!Most played games like X4: Foundations on Steam
Take a look at the top games like X4: Foundations that are currently attracting the largest player bases on the Steam platform, as of April 15th 2025.
1. No Man's Sky
Similarity 51% No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe. No Man's Sky is a open world, open world survival craft and space game developed and published by Hello Games. Released on August 12th 2016 has received 349,909 reviews of which 290,482 were positive and 59,427 were negative resulting in a rating of 8.2 out of 10. The game has hit the top spot as the #1 most played game like X4: Foundations, thanks to its 16,066 peak concurrent players over the last day.
8.2
290,482
59,427
16,066
players
2. Oxygen Not Included
Similarity 58% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 127,145 reviews of which 123,019 were positive and 4,126 were negative resulting in an impressive rating of 9.5 out of 10. While seeing 13,414 players online at once in the last 24 hours, this game is currently ranked #2 among games like X4: Foundations based on player count.
9.5
123,019
4,126
13,414
players
3. Elite Dangerous
Similarity 60% Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic. Elite Dangerous is a space sim, space and open world game developed and published by Frontier Developments. Released on April 02nd 2015 has received 98,919 reviews of which 76,509 were positive and 22,410 were negative resulting in a rating of 7.7 out of 10. While seeing 8,188 players online at once in the last 24 hours, this game is currently ranked #3 among games like X4: Foundations based on player count.
7.7
76,509
22,410
8,188
players
4. Dyson Sphere Program
Similarity 56% Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire. Dyson Sphere Program is a automation, space and base-building game developed by Youthcat Studio and published by Gamera Games. Released on January 20th 2021 has received 84,564 reviews of which 82,585 were positive and 1,979 were negative resulting in an impressive rating of 9.6 out of 10. With 5,796 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like X4: Foundations.
9.6
82,585
1,979
5,796
players
5. Kerbal Space Program
Similarity 51% 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 126,215 reviews of which 120,127 were positive and 6,088 were negative resulting in an impressive rating of 9.4 out of 10. With 3,278 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like X4: Foundations.
9.4
120,127
6,088
3,278
players
6. Empyrion - Galactic Survival
Similarity 51% Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion! Empyrion - Galactic Survival is a simulation, co-op and open world survival craft game developed and published by Eleon Game Studios. Released on August 05th 2020 has received 33,097 reviews of which 26,084 were positive and 7,013 were negative resulting in a rating of 7.8 out of 10. With 1,952 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like X4: Foundations.
7.8
26,084
7,013
1,952
players
7. Avorion
Similarity 72% A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy. Avorion is a exploration, sandbox and space sim game developed and published by Boxelware. Released on March 09th 2020 has received 13,492 reviews of which 12,182 were positive and 1,310 were negative resulting in a rating of 8.8 out of 10. With 1,015 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like X4: Foundations.
8.8
12,182
1,310
1,015
players
8. Surviving Mars
Similarity 52% There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you. Surviving Mars is a colony sim, city builder and strategy game developed by Haemimont Games and Abstraction and published by Paradox Interactive. Released on March 15th 2018 has received 26,404 reviews of which 22,330 were positive and 4,074 were negative resulting in a rating of 8.3 out of 10. With 923 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like X4: Foundations.
8.3
22,330
4,074
923
players
9. Space Haven
Similarity 58% Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation. Space Haven is a base-building, space and colony sim game developed and published by Bugbyte Ltd.. Released on May 21st 2020 has received 8,818 reviews of which 7,615 were positive and 1,203 were negative resulting in a rating of 8.4 out of 10. With 694 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like X4: Foundations.
8.4
7,615
1,203
694
players
10. Mad Games Tycoon 2
Similarity 53% Start your own game development studio in 1976. Build your own offices, production facilities and server rooms. Develop the games of your dreams and produce the next next-gen console. Rise from a small garage company to a huge corporation. Mad Games Tycoon 2 is a management, economy and game development game developed and published by Eggcode. Released on May 31st 2023 has received 6,929 reviews of which 6,506 were positive and 423 were negative resulting in an impressive rating of 9.1 out of 10. With 375 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like X4: Foundations.
9.1
6,506
423
375
players
Best deals on games like X4: Foundations on Steam
Discover fantastic savings with the best discounts on a variety of games like X4: Foundations available on Steam right now, updated on April 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like X4: Foundations.
1. InfraSpace
Similarity 53% Create an extrasolar efficiency utopia from scratch! In this sci-fi city builder you need to start mining operations, plan production, and lay down transportation routes to ensure a smooth supply chain. InfraSpace is a city builder, automation and transportation game developed and published by Dionic Software. Released on September 22nd 2023 has received 1,611 reviews of which 1,297 were positive and 314 were negative resulting in a rating of 7.7 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like X4: Foundations.
7.7
1,297
314
-95%
20.00€
1.00€
2. Juno: New Origins
Similarity 51% 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 3,066 reviews of which 2,762 were positive and 304 were negative resulting in a rating of 8.7 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like X4: Foundations.
8.7
2,762
304
-93%
18.43€
1.29€
3. Rise of Industry
Similarity 52% Put your entrepreneurial skills to the test in the first title in the ROI series as you create & optimise intricate production lines. As an early 20th-Century industrialist, grow your empire & adapt to an ever-changing business landscape with unexpected events that could lead to boom…or bust. Rise of Industry is a management, strategy and economy game developed by Dapper Penguin Studios and published by Kasedo Games. Released on May 02nd 2019 has received 4,084 reviews of which 2,993 were positive and 1,091 were negative resulting in a rating of 7.1 out of 10. Thanks to its incredible 92% discount, this game is now the #3 best deal in games like X4: Foundations.
7.1
2,993
1,091
-92%
30.63€
2.45€
4. Hardspace: Shipbreaker
Similarity 50% Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp! Hardspace: Shipbreaker is a space, sci-fi and simulation game developed by Blackbird Interactive and published by Focus Entertainment. Released on May 24th 2022 has received 20,217 reviews of which 18,089 were positive and 2,128 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 89% discount, this title has earned the #4 position in the best deals for games like X4: Foundations.
8.8
18,089
2,128
-89%
36.18€
3.98€
5. X3: Reunion
Similarity 72% 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. X3: Reunion is a space, simulation and strategy game developed and published by Egosoft. Released on July 21st 2006 has received 683 reviews of which 492 were positive and 191 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 85% discount, this title has earned the #5 position in the best deals for games like X4: Foundations.
6.9
492
191
-85%
9.73€
1.46€
6. X3: Terran Conflict
Similarity 83% It is the year 2938. The long wished-for encounter of the X Universe and the Earth holds both joy and sorrow for the people. Despite flourishing trade, the clash of the diverse races, cultures and life forms creates new tensions, mistrust and open conflict that need to be overcome! X3: Terran Conflict is a space, simulation and sandbox game developed and published by Egosoft. Released on October 16th 2008 has received 2,782 reviews of which 2,377 were positive and 405 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 80% discount, this title has earned the #6 position in the best deals for games like X4: Foundations.
8.2
2,377
405
-80%
15.99€
3.19€
7. X2: The Threat
Similarity 72% X²: The Threat is of a new generation of space simulator games, you play the role of Julian Gardna who continues the story set by X: Beyond The Frontier. The updated graphics engine gives the universe a fresher feel with newly designed ships and stations adding to the complexity of the universe. X2: The Threat is a space, strategy and simulation game developed and published by Egosoft. Released on July 21st 2006 has received 495 reviews of which 409 were positive and 86 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 80% discount, this title has earned the #7 position in the best deals for games like X4: Foundations.
7.8
409
86
-80%
4.99€
0.99€
8. X: Beyond the Frontier
Similarity 72% 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. X: Beyond the Frontier is a simulation, space and strategy game developed and published by Egosoft. Released on October 08th 2010 has received 360 reviews of which 269 were positive and 91 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 80% discount, this title has earned the #8 position in the best deals for games like X4: Foundations.
7.1
269
91
-80%
4.99€
0.99€
9. X3: Reunion
Similarity 72% 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. X3: Reunion is a game developed and published by . Released on July 21st 2006 has received 683 reviews of which 492 were positive and 191 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 85% discount, this title has earned the #9 position in the best deals for games like X4: Foundations.
6.9
492
191
-85%
9.73€
1.46€
10. Elite Dangerous
Similarity 60% Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic. Elite Dangerous is a space sim, space and open world game developed and published by Frontier Developments. Released on April 02nd 2015 has received 98,919 reviews of which 76,509 were positive and 22,410 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 79% discount, this title has earned the #10 position in the best deals for games like X4: Foundations.
7.7
76,509
22,410
-79%
19.86€
4.17€
Free games like X4: Foundations on Steam
Check out this fantastic list of free-to-play games like X4: Foundations you can enjoy on Steam right now, updated on April 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like X4: Foundations.
1. Endless Sky
Similarity 65% Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters. Endless Sky is a space, free to play and open world game developed and published by Michael Zahniser. Released on October 30th 2015 has received 6,579 reviews of which 6,074 were positive and 505 were negative resulting in a rating of 8.9 out of 10. With 110 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like X4: Foundations.
8.9
6,074
505
110
players
2. Prosperous Universe
Similarity 59% In Prosperous Universe start your galactic empire by trading on the real-time market exchange with other real players. Build your 1st base from humble beginnings & watch as your business flourishes with complex supply chain strategies. Economics, politics & realism fuel this immersive business MMO. Prosperous Universe is a early access, economy and resource management game developed and published by simulogics. Released on April 20th 2022 has received 883 reviews of which 665 were positive and 218 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #2 spot among the most played free games like X4: Foundations.
7.2
665
218
33
players