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!
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.
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.
Spaceflight Simulator
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
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.
Interstellar Transport Company
Build a galactic transportation empire and supply humanity with everything it needs to colonize the stars. In this sci-fi logistics simulator, grow your company from a local transport agency into an interstellar logistics behemoth! Singleplayer, vs AI, and online multiplayer.
Astrox Imperium
Astrox Imperium is a relaxing space game where you fly around a generated universe. Mining, Fighting, Building, Exploring, and Surviving. What makes this game unique? You have complete control of how it plays. A robust sandbox and lots of MOD tools. Make it your game, and play it your own way.
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.
Kerbal Space Program
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.
Wayward Terran Frontier: Zero Falls
2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.
Sim Companies
Become a Business Tycoon. Build your own company from the ground up. Do business in a virtual economy with players all around the world! Gain valuable business skills for free. An advanced, proprietary, Economy simulation model is used to deliver the best gaming experience.
Astrox: Hostile Space Excavation
Exiled to a deep space mining sector, you are left with a crappy ship, a laser, and a small mining beam. It is up to you to survive by working your way through the galaxy. Mine asteroids, refine and trade the ore, buy upgrades for your ship, hunt pirates... you get it.
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.
Reentry - A Space Flight Simulator
Do you have what it takes to be an astronaut? Reentry is a realistic space flight simulator based on NASAs space programs; from the first American human spaceflight in Project Mercury, the rendezvous and EVAs of Project Gemini to the Moon landing in Project Apollo.
Evochron Mercenary
The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.
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.
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.
STAR WARS™ - X-Wing Special Edition
Against the overwhelming might of the Empire stands a small but growing Rebel Alliance. Scattered resistance groups are uniting and what is needed most now are Starfighter pilots. Will you join their struggle to end this tyranny and become a hero of the Rebellion?
The Last Starship
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Elite Dangerous
Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic.
SimpleRockets
I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.
Capitalism 2
Create and control the business empire of your dreams. This in-depth strategy game covers almost every aspect of business that could be encountered in the real world.
Movies Tycoon
Movies Tycoon is a simulation game where you dive into the world of film-making. Start with a humble studio, scout and manage top talent, customize unique characters, and direct blockbuster films.
SpaceBourne
Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.
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 June 15th 2025.
1. Stellaris
Similarity 40% Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities. Stellaris is a space, grand strategy and strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on May 09th 2016 has received 185,433 reviews of which 159,527 were positive and 25,906 were negative resulting in a rating of 8.5 out of 10. The game has hit the top spot as the #1 most played game like X4: Foundations, thanks to its 15,712 peak concurrent players over the last day.
8.5
159,527
25,906
15,712
players
2. Space Engineers
Similarity 40% Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive. Space Engineers is a space, sandbox and building game developed and published by Keen Software House. Released on February 28th 2019 has received 132,347 reviews of which 117,204 were positive and 15,143 were negative resulting in a rating of 8.8 out of 10. While seeing 5,146 players online at once in the last 24 hours, this game is currently ranked #2 among games like X4: Foundations based on player count.
8.8
117,204
15,143
5,146
players
3. Elite Dangerous
Similarity 52% 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 100,024 reviews of which 77,388 were positive and 22,636 were negative resulting in a rating of 7.7 out of 10. While seeing 4,961 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
77,388
22,636
4,961
players
4. Anno 1800
Similarity 44% Anno 1800™ – Lead the Industrial Revolution! Welcome to the dawn of the Industrial Age. The path you choose will define your world. Are you an innovator or an exploiter? A conqueror or a liberator? How the world remembers your name is up to you. Anno 1800 is a city builder, strategy and simulation game developed by Ubisoft Mainz and published by Ubisoft. Released on April 16th 2019 has received 25,091 reviews of which 20,368 were positive and 4,723 were negative resulting in a rating of 8.0 out of 10. With 3,737 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like X4: Foundations.
8.0
20,368
4,723
3,737
players
5. Supermarket Simulator
Similarity 42% Run your own supermarket. Stock shelves, set prices as you'd like, take payments, hire staff, expand, deal with shoplifters, and design your store. Purchase goods from online or local markets around the town. Online orders & delivery are upcoming. Supermarket Simulator is a simulation, management and economy game developed and published by Nokta Games. Released on February 20th 2024 has received 68,341 reviews of which 64,104 were positive and 4,237 were negative resulting in an impressive rating of 9.2 out of 10. With 2,677 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like X4: Foundations.
9.2
64,104
4,237
2,677
players
6. Planet Zoo
Similarity 42% Build a world for wildlife in Planet Zoo. From the developers of Planet Coaster and Zoo Tycoon comes the ultimate zoo sim. Construct detailed habitats, manage your zoo, and meet authentic living animals who think, feel and explore the world you create around them. Planet Zoo is a management, simulation and building game developed and published by Frontier Developments. Released on November 05th 2019 has received 87,849 reviews of which 80,029 were positive and 7,820 were negative resulting in a rating of 9.0 out of 10. With 2,637 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like X4: Foundations.
9.0
80,029
7,820
2,637
players
7. Kerbal Space Program
Similarity 57% 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. With 2,221 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like X4: Foundations.
9.4
121,084
6,078
2,221
players
8. TCG Card Shop Simulator
Similarity 42% Open your own local game store. Stock shelves with the latest booster packs, or crack them and collect the cards for yourself. Set your own prices, hire staff, host events, and expand your card shop. TCG Card Shop Simulator is a simulation, management and economy game developed and published by OPNeon Games. Released on September 15th 2024 has received 39,499 reviews of which 38,392 were positive and 1,107 were negative resulting in an impressive rating of 9.5 out of 10. With 1,772 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like X4: Foundations.
9.5
38,392
1,107
1,772
players
9. Planet Coaster 2
Similarity 41% Build and customise thrilling roller coasters and incredible water slides, manage the ultimate theme park experience, and share your epic creations. Are you ready to ride the wave? Planet Coaster 2 is a simulation, strategy and building game developed and published by Frontier Developments. Released on November 06th 2024 has received 9,316 reviews of which 6,074 were positive and 3,242 were negative resulting in a rating of 6.4 out of 10. With 1,419 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like X4: Foundations.
6.4
6,074
3,242
1,419
players
10. Empyrion - Galactic Survival
Similarity 49% 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 33,247 reviews of which 26,195 were positive and 7,052 were negative resulting in a rating of 7.8 out of 10. With 1,102 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like X4: Foundations.
7.8
26,195
7,052
1,102
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 June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like X4: Foundations.
1. Starpoint Gemini Warlords
Similarity 47% 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! Starpoint Gemini Warlords is a space, rpg and open world game developed and published by Little Green Men Games. Released on May 23rd 2017 has received 3,532 reviews of which 2,593 were positive and 939 were negative resulting in a rating of 7.1 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like X4: Foundations.
7.1
2,593
939
-99%
31.99€
0.47€
2. Starpoint Gemini 2
Similarity 47% Captain your own space ship and roam the galaxy in 3D in this tactical space simulator with tons of RPG depth ! Space has never looked so inviting - but images can betray...It has been two years since the end of the second Gemini war, the situation in the wartorn system is further from resolution than ever. Starpoint Gemini 2 is a space, simulation and rpg game developed and published by Little Green Men Games. Released on September 26th 2014 has received 4,093 reviews of which 2,843 were positive and 1,250 were negative resulting in a rating of 6.8 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like X4: Foundations.
6.8
2,843
1,250
-99%
31.99€
0.60€
3. Black Skylands
Similarity 42% Become the captain of an airship and explore the world of the skies, gather resources and build powerful weapons, uncover ancient secrets and fight beneath your ship's sails. Black Skylands is a pixel graphics, open world and sandbox game developed by Hungry Couch Games and published by tinyBuild. Released on August 15th 2023 has received 3,894 reviews of which 3,236 were positive and 658 were negative resulting in a rating of 8.0 out of 10. Thanks to its incredible 98% discount, this game is now the #3 best deal in games like X4: Foundations.
8.0
3,236
658
-98%
19.50€
0.45€
4. Rover Mechanic Simulator
Similarity 42% As an Engineer - crew member of one of the first Mars colonies - you are responsible for repairing and maintaining Mars Rovers. In this advanced simulator you will learn the internal details of various Mars Rovers and their components. Rover Mechanic Simulator is a simulation, indie and building game developed by ▲ Pyramid Games and published by Pyramid Games S.A. and PlayWay S.A.. Released on November 12th 2020 has received 637 reviews of which 489 were positive and 148 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 X4: Foundations.
7.3
489
148
-98%
11.79€
0.35€
5. Rise of Industry
Similarity 45% 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 4,100 reviews of which 3,001 were positive and 1,099 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like X4: Foundations.
7.1
3,001
1,099
-98%
28.99€
0.62€
6. TransOcean: The Shipping Company
Similarity 41% TransOcean – The Shipping Company is your ticket to the world of gigantic ships and transnational transport empires. Build a mighty fleet of modern merchant ships and conquer the seven seas. TransOcean: The Shipping Company is a simulation, strategy and management game developed by Deck13 Hamburg and published by astragon Entertainment. Released on September 23rd 2014 has received 1,277 reviews of which 943 were positive and 334 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like X4: Foundations.
7.1
943
334
-98%
19.99€
0.58€
7. Hardspace: Shipbreaker
Similarity 44% 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 20,422 reviews of which 18,276 were positive and 2,146 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 97% discount, this title has earned the #7 position in the best deals for games like X4: Foundations.
8.8
18,276
2,146
-97%
34.99€
1.08€
8. Merchant of the Skies
Similarity 41% Become the captain of a flying ship! Sell items, gather resources and build your own trade company in the clouds! Merchant of the Skies is a trading, base-building and management game developed and published by Coldwild Games. Released on April 17th 2020 has received 2,164 reviews of which 1,862 were positive and 302 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 97% discount, this title has earned the #8 position in the best deals for games like X4: Foundations.
8.3
1,862
302
-97%
14.99€
0.47€
9. Tropico 5
Similarity 43% Return to the remote island nation of Tropico and expand your Dynasty’s reign from the early colonial period to beyond the 21st Century, facing new challenges including advanced trading mechanics, technology and scientific research, as well as cooperative and competitive MULTIPLAYER. Tropico 5 is a strategy, city builder and simulation game developed by Haemimont Games and published by Kalypso Media Digital. Released on May 23rd 2014 has received 14,123 reviews of which 11,092 were positive and 3,031 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 97% discount, this title has earned the #9 position in the best deals for games like X4: Foundations.
7.7
11,092
3,031
-97%
19.99€
0.78€
10. Between the Stars
Similarity 42% 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. Between the Stars is a space, rpg and action game developed and published by Isolated Games. Released on March 07th 2024 has received 2,301 reviews of which 1,724 were positive and 577 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 97% discount, this title has earned the #10 position in the best deals for games like X4: Foundations.
7.3
1,724
577
-97%
28.99€
0.89€
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 June 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. OpenTTD
Similarity 44% OpenTTD is a business simulation game in which players earn money by transporting passengers and cargo via road, rail, water, and air. It is an open-source remake and expansion of the 1995 Chris Sawyer video game Transport Tycoon Deluxe. OpenTTD is a simulation, building and free to play game developed and published by OpenTTD. Released on April 01st 2021 has received 14,394 reviews of which 13,845 were positive and 549 were negative resulting in an impressive rating of 9.4 out of 10. With 556 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like X4: Foundations.
9.4
13,845
549
556
players
2. Sim Companies
Similarity 57% Become a Business Tycoon. Build your own company from the ground up. Do business in a virtual economy with players all around the world! Gain valuable business skills for free. An advanced, proprietary, Economy simulation model is used to deliver the best gaming experience. Sim Companies is a economy, capitalism and simulation game developed and published by Sim Companies s.r.o.. Released on August 31st 2023 has received 866 reviews of which 689 were positive and 177 were negative resulting in a rating of 7.6 out of 10. Thanks to its free to play tag and a daily player base of 142, this game has secured the #2 spot in the ranking of free games like X4: Foundations.
7.6
689
177
142
players
3. Plasma
Similarity 41% Plasma is a pure engineering sandbox. Use advanced visual programming and robotics tools to create anything you can imagine. Plasma is a simulation, sandbox and 3d game developed by Dry Cactus and Licorice ehf and published by Dry Licorice. Released on September 13th 2023 has received 888 reviews of which 789 were positive and 99 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #3 spot among the most played free games like X4: Foundations.
8.4
789
99
10
players
4. Space Commander: War and Trade
Similarity 40% Fight, explore the stars, trade, and lead your fleet across the galaxySpace Commander: War and Trade is an ultimate single player space-sim featuring spectacular graphics, intuitive combat and deep mechanics. Space Commander: War and Trade is a action, rpg and base-building game developed and published by Home Net Games. Released on November 04th 2020 has received 656 reviews of which 442 were positive and 214 were negative resulting in a rating of 6.5 out of 10. The game currently holds the #4 spot among the most played free games like X4: Foundations.
6.5
442
214
10
players
5. Crypto Miner Tycoon Simulator Starter Edition
Similarity 45% Start in your bedroom in year 2010. Build rigs to mine Bitcoin, Ethereum and other crypto coins. Trade on the market to grow wealth. Expand your business into new offices. Hire skilled employees and assign tasks. Use cash from your mega farms to research new technologies. Crypto Miner Tycoon Simulator Starter Edition is a simulation, free to play and management game developed by Bigosaur and published by CreativeForge Games and G-DEVS.com. Released on April 24th 2023 has received 1,290 reviews of which 1,145 were positive and 145 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #5 spot among the most played free games like X4: Foundations.
8.4
1,145
145
8
players