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.
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.
X4: Foundations
X4: FOUNDATIONS brings our most sophisticated universe SIMULATION ever. Fly every ship, EXPLORE space or manage an empire; TRADE, FIGHT, BUILD and THINK carefully, while you embark on an epic journey. Experience tons of improvements with the massive 7.50 Update!
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!
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!
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.
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!
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
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.
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.
Planetbase
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.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 15th 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 207,285 reviews of which 203,071 were positive and 4,214 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 35,684 peak concurrent players over the last day.
9.7
203,071
4,214
35,684
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 181,672 reviews of which 157,497 were positive and 24,175 were negative resulting in a rating of 8.6 out of 10. While seeing 21,442 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
157,497
24,175
21,442
players
3. No Man's Sky
Similarity 72% 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. While seeing 16,066 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
290,482
59,427
16,066
players
4. 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 127,145 reviews of which 123,019 were positive and 4,126 were negative resulting in an impressive rating of 9.5 out of 10. With 13,414 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like X3: Reunion.
9.5
123,019
4,126
13,414
players
5. 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 98,919 reviews of which 76,509 were positive and 22,410 were negative resulting in a rating of 7.7 out of 10. With 8,188 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like X3: Reunion.
7.7
76,509
22,410
8,188
players
6. Dyson Sphere Program
Similarity 78% 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 #6 spot among the most played games like X3: Reunion.
9.6
82,585
1,979
5,796
players
7. X4: Foundations
Similarity 86% X4: FOUNDATIONS brings our most sophisticated universe SIMULATION ever. Fly every ship, EXPLORE space or manage an empire; TRADE, FIGHT, BUILD and THINK carefully, while you embark on an epic journey. Experience tons of improvements with the massive 7.50 Update! X4: Foundations is a space sim, simulation and sandbox game developed and published by Egosoft. Released on November 30th 2018 has received 23,187 reviews of which 18,408 were positive and 4,779 were negative resulting in a rating of 7.8 out of 10. With 5,472 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like X3: Reunion.
7.8
18,408
4,779
5,472
players
8. EVE Online
Similarity 62% 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 35,998 reviews of which 26,538 were positive and 9,460 were negative resulting in a rating of 7.3 out of 10. With 4,536 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like X3: Reunion.
7.3
26,538
9,460
4,536
players
9. Space Engineers
Similarity 71% 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 131,727 reviews of which 116,631 were positive and 15,096 were negative resulting in a rating of 8.7 out of 10. With 4,309 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like X3: Reunion.
8.7
116,631
15,096
4,309
players
10. 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 23,288 reviews of which 20,937 were positive and 2,351 were negative resulting in a rating of 8.8 out of 10. With 3,887 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like X3: Reunion.
8.8
20,937
2,351
3,887
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 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like X3: Reunion.
1. InfraSpace
Similarity 70% 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 X3: Reunion.
7.7
1,297
314
-95%
20.00€
1.00€
2. 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 1,167 reviews of which 990 were positive and 177 were negative resulting in a rating of 8.1 out of 10. Thanks to its incredible 94% discount, this game is now the #2 best deal in games like X3: Reunion.
8.1
990
177
-94%
16.67€
1.00€
3. 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 1,815 reviews of which 1,375 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 #3 best deal in games like X3: Reunion.
7.3
1,375
440
-92%
28.00€
2.24€
4. 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 1,066 were positive and 319 were negative resulting in a rating of 7.4 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.
7.4
1,066
319
-91%
23.78€
2.14€
5. Space Crew: Legendary Edition
Similarity 68% Time for your toughest mission yet! Recruit and train your crew to tackle the growing threat from alien and android armies as you defend Earth to become a Galactic Legend in Space Crew: Legendary Edition. All new content free to existing owners of Space Crew! Space Crew: Legendary Edition is a action, sci-fi and adventure game developed by Runner Duck and published by Curve Games. Released on October 15th 2020 has received 2,837 reviews of which 2,140 were positive and 697 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like X3: Reunion.
7.3
2,140
697
-91%
16.56€
1.49€
6. VoidExpanse
Similarity 71% 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 747 reviews of which 534 were positive and 213 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 91% discount, this title has earned the #6 position in the best deals for games like X3: Reunion.
6.9
534
213
-91%
15.11€
1.36€
7. Space Rangers HD: A War Apart
Similarity 71% 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 6,610 reviews of which 6,242 were positive and 368 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 #7 position in the best deals for games like X3: Reunion.
9.1
6,242
368
-90%
15.30€
1.53€
8. Hardspace: Shipbreaker
Similarity 82% 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 #8 position in the best deals for games like X3: Reunion.
8.8
18,089
2,128
-89%
36.18€
3.98€
9. Jurassic World Evolution
Similarity 66% 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 53,727 reviews of which 46,861 were positive and 6,866 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
46,861
6,866
-87%
46.15€
6.00€
10. Jurassic World Evolution 2
Similarity 66% Jurassic World Evolution 2 is the much-anticipated sequel to Frontier’s highly successful Jurassic World Evolution. This bold new era in the Jurassic World Evolution game franchise builds upon the ground-breaking and immersive 2018 management simulation. Jurassic World Evolution 2 is a dinosaurs, building and simulation game developed and published by Frontier Developments. Released on November 09th 2021 has received 35,546 reviews of which 31,755 were positive and 3,791 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 84% discount, this title has earned the #10 position in the best deals for games like X3: Reunion.
8.8
31,755
3,791
-84%
61.69€
9.87€
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 15th 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 62% 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 35,998 reviews of which 26,538 were positive and 9,460 were negative resulting in a rating of 7.3 out of 10. With 4,536 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like X3: Reunion.
7.3
26,538
9,460
4,536
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 23,288 reviews of which 20,937 were positive and 2,351 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 3,887, this game has secured the #2 spot in the ranking of free games like X3: Reunion.
8.8
20,937
2,351
3,887
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 6,579 reviews of which 6,074 were positive and 505 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 110, this game has secured the #3 spot in the ranking of free games like X3: Reunion.
8.9
6,074
505
110
players
4. Prosperous Universe
Similarity 82% 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 #4 spot among the most played free games like X3: Reunion.
7.2
665
218
33
players
5. 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 2,565 reviews of which 2,352 were positive and 213 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #5 spot among the most played free games like X3: Reunion.
8.8
2,352
213
17
players
6. 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 423 reviews of which 342 were positive and 81 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #6 spot among the most played free games like X3: Reunion.
7.6
342
81
13
players