Games like X3: Reunion on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like X3: Reunion 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.
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.
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.
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.
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.
X4: Foundations
Thrilling space battles meet deep strategy. X4 invites you to explore, fight, trade, and build an empire in a dynamic, fully simulated space sandbox, where every decision shapes your journey. Now featuring the 2025 flight model overhaul.
Elite Dangerous
Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic.
Rebel Galaxy
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.
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!
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.
StarMade
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Hardspace: Shipbreaker
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!
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.
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.
Empyrion - Galactic Survival
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!
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.
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.
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
Dyson Sphere Program
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.
Surviving Mars
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.
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.Most played games like X3: Reunion on Steam
Take a look at the top games like X3: Reunion that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. RimWorld
Similarity 68% A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more. RimWorld is a colony sim, base-building and survival game developed and published by Ludeon Studios. Released on October 17th 2018 has received 208,163 reviews of which 203,940 were positive and 4,223 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played game like X3: Reunion, thanks to its 18,188 peak concurrent players over the last day.
9.7
203,940
4,223
18,188
players
2. Stellaris
Similarity 65% 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 182,155 reviews of which 157,931 were positive and 24,224 were negative resulting in a rating of 8.6 out of 10. While seeing 8,932 players online at once in the last 24 hours, this game is currently ranked #2 among games like X3: Reunion based on player count.
8.6
157,931
24,224
8,932
players
3. No Man's Sky
Similarity 71% 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 350,242 reviews of which 290,801 were positive and 59,441 were negative resulting in a rating of 8.2 out of 10. While seeing 5,653 players online at once in the last 24 hours, this game is currently ranked #3 among games like X3: Reunion based on player count.
8.2
290,801
59,441
5,653
players
4. Elite Dangerous
Similarity 87% 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 99,333 reviews of which 76,805 were positive and 22,528 were negative resulting in a rating of 7.7 out of 10. With 4,976 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like X3: Reunion.
7.7
76,805
22,528
4,976
players
5. Space Engineers
Similarity 70% 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 131,878 reviews of which 116,777 were positive and 15,101 were negative resulting in a rating of 8.7 out of 10. With 4,402 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like X3: Reunion.
8.7
116,777
15,101
4,402
players
6. Oxygen Not Included
Similarity 80% 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 127,555 reviews of which 123,406 were positive and 4,149 were negative resulting in an impressive rating of 9.5 out of 10. With 4,349 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like X3: Reunion.
9.5
123,406
4,149
4,349
players
7. EVE Online
Similarity 61% EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. EVE Online is a space, free to play and open world game developed and published by CCP. Released on December 15th 2010 has received 36,127 reviews of which 26,628 were positive and 9,499 were negative resulting in a rating of 7.3 out of 10. With 3,023 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like X3: Reunion.
7.3
26,628
9,499
3,023
players
8. Cell to Singularity - Evolution Never Ends
Similarity 62% The epic story of evolution, technology, humanity, and dinosaurs is yours to tap. Cell to Singularity - Evolution Never Ends is a clicker, free to play and simulation game developed and published by Computer Lunch. Released on November 03rd 2021 has received 23,393 reviews of which 21,027 were positive and 2,366 were negative resulting in a rating of 8.8 out of 10. With 2,520 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like X3: Reunion.
8.8
21,027
2,366
2,520
players
9. X4: Foundations
Similarity 87% Thrilling space battles meet deep strategy. X4 invites you to explore, fight, trade, and build an empire in a dynamic, fully simulated space sandbox, where every decision shapes your journey. Now featuring the 2025 flight model overhaul. X4: Foundations is a space sim, simulation and sandbox game developed and published by Egosoft. Released on November 30th 2018 has received 23,455 reviews of which 18,628 were positive and 4,827 were negative resulting in a rating of 7.8 out of 10. With 2,503 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like X3: Reunion.
7.8
18,628
4,827
2,503
players
10. Kerbal Space Program
Similarity 80% 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 126,522 reviews of which 120,440 were positive and 6,082 were negative resulting in an impressive rating of 9.4 out of 10. With 1,958 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like X3: Reunion.
9.4
120,440
6,082
1,958
players
Best deals on games like X3: Reunion on Steam
Discover fantastic savings with the best discounts on a variety of games like X3: Reunion available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like X3: Reunion.
1. Tin Can
Similarity 64% You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive? Tin Can is a simulation, space and survival game developed by Tin Can Studio and published by Tin Can Studio and IndieArk. Released on May 12th 2022 has received 1,181 reviews of which 1,000 were positive and 181 were negative resulting in a rating of 8.1 out of 10. Featuring a massive 94% discount, this game currently holds the #1 spot in the best deals for games like X3: Reunion.
8.1
1,000
181
-94%
16.67€
1.00€
2. Distant Worlds: Universe
Similarity 63% Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game. Distant Worlds: Universe is a strategy, 4x and space game developed by Code Force and published by Slitherine Ltd.. Released on May 23rd 2014 has received 1,816 reviews of which 1,376 were positive and 440 were negative resulting in a rating of 7.3 out of 10. Thanks to its incredible 92% discount, this game is now the #2 best deal in games like X3: Reunion.
7.3
1,376
440
-92%
28.00€
2.24€
3. Shortest Trip to Earth
Similarity 66% Shortest Trip to Earth is a roguelike spaceship simulator focused on exploration, ship management and tactical battles. Embark on a perilous journey across the universe with nuclear missiles, armed crew and a cat. Shortest Trip to Earth is a rogue-lite, space and strategy game developed by Interactive Fate and published by Interactive Fate and Iceberg Interactive. Released on August 15th 2019 has received 1,385 reviews of which 1,067 were positive and 318 were negative resulting in a rating of 7.4 out of 10. Thanks to its incredible 91% discount, this game is now the #3 best deal in games like X3: Reunion.
7.4
1,067
318
-91%
23.78€
2.14€
4. VoidExpanse
Similarity 70% Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse! VoidExpanse is a space, rpg and open world game developed and published by AtomicTorch Studio. Released on April 02nd 2015 has received 748 reviews of which 534 were positive and 214 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 91% discount, this title has earned the #4 position in the best deals for games like X3: Reunion.
6.9
534
214
-91%
15.11€
1.36€
5. Space Rangers HD: A War Apart
Similarity 70% Space adventure, open world RPG, strategy, arcade, quest and more! Space Rangers HD: A War Apart is a space, rpg and strategy game developed by SNK Games, Elemental Games and Katauri Interactive and published by Fulqrum Publishing. Released on October 17th 2013 has received 6,625 reviews of which 6,253 were positive and 372 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 90% discount, this title has earned the #5 position in the best deals for games like X3: Reunion.
9.1
6,253
372
-90%
15.30€
1.53€
6. Hardspace: Shipbreaker
Similarity 81% 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 20,286 reviews of which 18,156 were positive and 2,130 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 89% discount, this title has earned the #6 position in the best deals for games like X3: Reunion.
8.8
18,156
2,130
-89%
36.18€
3.98€
7. Breathedge
Similarity 61% Survive in outer space! Together with your immortal chicken, discover the truth behind your sudden spaceship crash. Craft tools, pilot vehicles, and even control space stations to survive and explore the wreckage. Breathedge is a open world survival craft, space and singleplayer game developed by RedRuins Softworks and published by RedRuins Softworks and HypeTrain Digital. Released on February 25th 2021 has received 15,194 reviews of which 12,524 were positive and 2,670 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 88% discount, this title has earned the #7 position in the best deals for games like X3: Reunion.
8.1
12,524
2,670
-88%
24.42€
2.93€
8. Before We Leave
Similarity 70% Before We Leave is a city building game set in a cozy corner of the universe. Nurture your Peeps and their surroundings while rebuilding and rediscovering civilisation. Settle new lands and planets while avoiding hungry Space Whales. Before We Leave is a city builder, casual and economy game developed by Balancing Monkey Games and published by Team17. Released on May 13th 2021 has received 1,621 reviews of which 1,270 were positive and 351 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 88% discount, this title has earned the #8 position in the best deals for games like X3: Reunion.
7.5
1,270
351
-88%
17.33€
2.08€
9. Jurassic World Evolution
Similarity 65% Place yourself at the heart of the Jurassic franchise and build your own Jurassic World. Bioengineer dinosaurs that think, feel and react intelligently to the world around them and face threats posed by espionage, breakouts and devastating tropical storms in an uncertain world where life always finds a way. Jurassic World Evolution is a building, dinosaurs and simulation game developed and published by Frontier Developments. Released on June 11th 2018 has received 53,822 reviews of which 46,957 were positive and 6,865 were negative resulting in a rating of 8.6 out of 10. Currently offered at a significant 87% discount, this title has earned the #9 position in the best deals for games like X3: Reunion.
8.6
46,957
6,865
-87%
45.31€
5.89€
10. Space Rangers HD: A War Apart
Similarity 70% Space adventure, open world RPG, strategy, arcade, quest and more! Space Rangers HD: A War Apart is a game developed and published by . Released on October 17th 2013 has received 6,625 reviews of which 6,253 were positive and 372 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 90% discount, this title has earned the #10 position in the best deals for games like X3: Reunion.
9.1
6,253
372
-90%
15.30€
1.53€
Free games like X3: Reunion on Steam
Check out this fantastic list of free-to-play games like X3: Reunion you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like X3: Reunion.
1. EVE Online
Similarity 61% EVE Online is a free-to-play community driven space MMO where players can choose their own path from countless different options. Experience space exploration, immense PvP and PvE battles, mining, industry and a thriving player economy in an ever-expanding sandbox. EVE Online is a space, free to play and open world game developed and published by CCP. Released on December 15th 2010 has received 36,127 reviews of which 26,628 were positive and 9,499 were negative resulting in a rating of 7.3 out of 10. With 3,023 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like X3: Reunion.
7.3
26,628
9,499
3,023
players
2. Cell to Singularity - Evolution Never Ends
Similarity 62% The epic story of evolution, technology, humanity, and dinosaurs is yours to tap. Cell to Singularity - Evolution Never Ends is a clicker, free to play and simulation game developed and published by Computer Lunch. Released on November 03rd 2021 has received 23,393 reviews of which 21,027 were positive and 2,366 were negative resulting in a rating of 8.8 out of 10. Thanks to its free to play tag and a daily player base of 2,520, this game has secured the #2 spot in the ranking of free games like X3: Reunion.
8.8
21,027
2,366
2,520
players
3. Endless Sky
Similarity 94% 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 6,604 reviews of which 6,096 were positive and 508 were negative resulting in a rating of 8.9 out of 10. Thanks to its free to play tag and a daily player base of 129, this game has secured the #3 spot in the ranking of free games like X3: Reunion.
8.9
6,096
508
129
players
4. Prosperous Universe
Similarity 83% 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 886 reviews of which 666 were positive and 220 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #4 spot among the most played free games like X3: Reunion.
7.2
666
220
28
players
5. Kepler-2100
Similarity 64% Kepler-2100 is a space fantasy strategy war game Kepler-2100 is a strategy, space and 3d platformer game developed and published by NCARD. Released on September 24th 2024 has received 425 reviews of which 342 were positive and 83 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #5 spot among the most played free games like X3: Reunion.
7.6
342
83
14
players
6. Planet S
Similarity 59% Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction. Planet S is a strategy, city builder and multiplayer game developed and published by Glimmerlight Games. Released on October 28th 2023 has received 2,572 reviews of which 2,358 were positive and 214 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #6 spot among the most played free games like X3: Reunion.
8.8
2,358
214
9
players
7. Destination Sol
Similarity 59% Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter! Destination Sol is a free to play, rpg and action game developed and published by MovingBlocks. Released on February 05th 2015 has received 1,355 reviews of which 1,070 were positive and 285 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #7 spot among the most played free games like X3: Reunion.
7.6
1,070
285
2
players