Discounted Space games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated space games. For those who prefer not to search, lists of the most played, top deals and best free space games are available at the bottom of the page.
Filters & Lists
Genesis Noir
A noir adventure spanning time and space. When a love triangle between cosmic beings becomes a bitter confrontation, you'll witness a gunshot fired by a jealous god—otherwise known as The Big Bang. Jump into the expanding universe and search for a way to destroy creation and save your love.
Mech Mechanic Simulator
Become a Mech Mechanic to deconstruct, rebuild, paint and fix gigantic iron machines. You live in an age of enormous machines and you better get ready to get your hands dirty!
Breathedge
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.
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.
SPACERIFT: Arcanum System
At the sunset of human life on planet Earth, you are a military pilot controlling a space ship, and you find yourself at the very epicenter of the battle in the solar system. You are forced to retreat into the unknown, distant Arcanum system through hyper-jumping.
Shadow Empire
Shadow Empire is a deep turn-based 4X wargame with a unique blend of military focus, procedurally generated content and role-playing features.
Per Aspera
Make Mars your own! Take control of the world’s most sophisticated AI (AMI) and terraform the surface of the Red Planet for a city-building experience on a planetary scale. Transform this barren world into a lush paradise and explore the surface for any ancient secrets that may be waiting.
Creeper World 4
The unstoppable fluid enemy has returned and destroyed every world in its path! Defend against Creeper as it floods across the 3D terrain in this real time strategy game where the enemy is a fluid.
Drone Swarm
Drone Swarm is a very unique take on tactical games. Control 32,000 drones in quick, fast-paced fights. Combine your swarm abilities and counter constantly evolving attacks of your opponents. Survive varying enemy waves, get upgrades to your swarm, and make it to the next system alive!
Space Crew: Legendary Edition
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!
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!
Starship EVO
Create the Starship of your dreams, explore the vast expanse of the galaxy, land on planets and jump into epic space battles. Experience a truly unique and powerful building engine where your imagination is the limit. Welcome to the next evolution in Space Sandbox gaming!
Outer Wilds
Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.
Observation
Observation is a sci-fi thriller uncovering what happened to Dr. Emma Fisher, and the crew of her mission, through the lens of the station’s artificial intelligence S.A.M.
Starcom: Nexus
Suddenly thrown into an unknown galaxy, you must explore, fight or befriend aliens and transform your ship from a small survey vessel into a powerful battlecruiser to unravel the mystery of the forces that brought you here and find your way home.
SD GUNDAM G GENERATION CROSS RAYS
Beyond creation, four eras come together as one! Discover the latest entry in this iconic Tactical RPG series. Form your own team of SD Gundams and deploy for battle -- with units from Mobile Suit Gundam Wing, SEED, 00, and Iron-Blooded Orphans!
Moons of Madness
Moons of Madness is a first-person, story-driven cosmic horror game where the scientific exploration of Mars meets the supernatural dread of Lovecraft.
Beat Hazard 2
Experience your music collection as never before with this intense music driven arcade shooter. Each of your songs will have its own unique ebb and flow based on the music.
Nauticrawl
A stolen, enigmatic machine is your only way out. It's likely to kill you, but so will the hostile planet you're escaping. Pull levers, hack devices, and puzzle out how to pilot the Nauticrawl to freedom in this unusual atmospheric adventure... or die trying.
Shortest Trip to Earth
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.
Age of Wonders: Planetfall
Age of Wonders: Planetfall is the new strategy game from Triumph Studios, creators of the critically acclaimed Age of Wonders series, bringing all the exciting tactical turn-based combat and in-depth empire building of its predecessors to space in an all-new, sci-fi setting.
Interstellar Space: Genesis
Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!Most played space games on Steam
Take a look at the top space games that are currently attracting the largest player bases on the Steam platform, as of April 19th 2025.
1. Stellaris
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 181,916 reviews of which 157,721 were positive and 24,195 were negative resulting in a rating of 8.6 out of 10. The game has hit the top spot as the #1 most played space game, thanks to its 12,543 peak concurrent players over the last day.
8.6
157,721
24,195
12,543
players
2. No Man's Sky
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 9,228 players online at once in the last 24 hours, this game is currently ranked #2 among space games based on player count.
8.2
290,482
59,427
9,228
players
3. Elite Dangerous
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 99,111 reviews of which 76,646 were positive and 22,465 were negative resulting in a rating of 7.7 out of 10. While seeing 7,265 players online at once in the last 24 hours, this game is currently ranked #3 among space games based on player count.
7.7
76,646
22,465
7,265
players
4. Among Us
An online and local party game of teamwork and betrayal for 4-15 players...in space! Among Us is a multiplayer, social deduction and online co-op game developed and published by Innersloth. Released on November 16th 2018 has received 699,079 reviews of which 642,113 were positive and 56,966 were negative resulting in an impressive rating of 9.1 out of 10. With 5,345 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played space games.
9.1
642,113
56,966
5,345
players
5. Unnamed Space Idle
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power. Unnamed Space Idle is a idler, casual and free to play game developed by Sylv and published by Jdog Corp. Released on July 27th 2023 has received 2,694 reviews of which 2,508 were positive and 186 were negative resulting in a rating of 8.9 out of 10. With 4,508 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played space games.
8.9
2,508
186
4,508
players
6. Space Engineers
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 4,017 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played space games.
8.7
116,631
15,096
4,017
players
7. 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! X4: Foundations is a space sim, simulation and sandbox game developed and published by Egosoft. Released on November 30th 2018 has received 23,304 reviews of which 18,494 were positive and 4,810 were negative resulting in a rating of 7.8 out of 10. With 3,955 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played space games.
7.8
18,494
4,810
3,955
players
8. EVE Online
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 3,730 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played space games.
7.3
26,538
9,460
3,730
players
9. 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. 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 126,433 reviews of which 120,348 were positive and 6,085 were negative resulting in an impressive rating of 9.4 out of 10. With 2,655 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played space games.
9.4
120,348
6,085
2,655
players
10. ASTRONEER
Interact with strange new worlds in a unique and tactile way, molding the environment itself as if it were clay in your hands. Build your base, master resource management, automate your production lines, and more as you unravel the mysteries of the universe, alone or with friends. ASTRONEER is a multiplayer, open world and open world survival craft game developed and published by System Era Softworks. Released on February 05th 2019 has received 127,856 reviews of which 117,817 were positive and 10,039 were negative resulting in an impressive rating of 9.1 out of 10. With 2,426 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played space games.
9.1
117,817
10,039
2,426
players
Best deals on space games on Steam
Discover fantastic savings with the best discounts on a variety of space games available on Steam right now, updated on April 19th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted space games.
1. InfraSpace
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 space category.
7.7
1,297
314
-95%
20.00€
1.00€
2. Observation
Observation is a sci-fi thriller uncovering what happened to Dr. Emma Fisher, and the crew of her mission, through the lens of the station’s artificial intelligence S.A.M. Observation is a indie, adventure and space game developed by No Code and published by Devolver Digital. Released on May 21st 2020 has received 4,740 reviews of which 3,717 were positive and 1,023 were negative resulting in a rating of 7.6 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in space games.
7.6
3,717
1,023
-95%
26.80€
1.34€
3. This Means Warp
It’s co-op space survival fun, Jim, but not as we know it. This Means Warp is an intense spaceship management roguelite experience for 1-4 players. Explore a procedurally generated universe, upgrade your ship, battle dangerous enemies and adapt your strategies to survive in a hostile galaxy. This Means Warp is a survival, online co-op and space game developed by Outlier and published by Jagex Ltd. Released on May 04th 2023 has received 619 reviews of which 445 were positive and 174 were negative resulting in a rating of 6.9 out of 10. Thanks to its incredible 95% discount, this game is now the #3 best deal in space games.
6.9
445
174
-95%
20.00€
1.00€
4. Homeworld Remastered Collection
Experience the epic space strategy games that redefined the RTS genre. Control your fleet and build an armada across more than 30 single-player missions. Choose unit types, fleet formations and flight tactics for each strategic situation. Homeworld Remastered Collection is a space, strategy and rts game developed by Gearbox Software and Aspyr (Mac) and published by Aspyr (Mac) and Gearbox Publishing. Released on February 25th 2015 has received 13,513 reviews of which 11,942 were positive and 1,571 were negative resulting in a rating of 8.6 out of 10. Currently offered at a significant 94% discount, this title has earned the #4 position in the best deals for space games.
8.6
11,942
1,571
-94%
33.33€
2.00€
5. Chorus
Take control of Nara on a quest to destroy the dark cult that created her. Unlock devastating weapons & mind-bending abilities in an evolution of the space-combat shooter. Along with Forsaken, her sentient starfighter, explore ancient temples, engage in zero-g combat & venture beyond waking reality. Chorus is a action, adventure and indie game developed by Deep Silver Fishlabs and published by Deep Silver. Released on December 03rd 2021 has received 3,974 reviews of which 3,305 were positive and 669 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 92% discount, this title has earned the #5 position in the best deals for space games.
8.0
3,305
669
-92%
23.50€
1.88€
6. Distant Worlds: Universe
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. Currently offered at a significant 92% discount, this title has earned the #6 position in the best deals for space games.
7.3
1,376
440
-92%
28.00€
2.24€
7. Planets Under Attack
Play as humans or robots in a brand new sci-fi strategy adventure! Travel into the far reaches of space, through cleverly designed star constellations and variable game modes, conquering enemy planets using 15 combinable technologies. Planets Under Attack is a strategy, indie and space game developed by Targem Games and published by TopWare Interactive. Released on September 27th 2012 has received 1,113 reviews of which 806 were positive and 307 were negative resulting in a rating of 7.0 out of 10. Currently offered at a significant 92% discount, this title has earned the #7 position in the best deals for space games.
7.0
806
307
-92%
12.50€
1.00€
8. Shortest Trip to Earth
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. Currently offered at a significant 91% discount, this title has earned the #8 position in the best deals for space games.
7.4
1,067
318
-91%
23.78€
2.14€
9. VoidExpanse
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 #9 position in the best deals for space games.
6.9
534
214
-91%
15.11€
1.36€
10. Space Rangers HD: A War Apart
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 6,615 reviews of which 6,247 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 #10 position in the best deals for space games.
9.1
6,247
368
-90%
15.30€
1.53€
Free space games on Steam
Check out this fantastic list of free-to-play space games you can enjoy on Steam right now, updated on April 19th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play space games.
1. Unnamed Space Idle
Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power. Unnamed Space Idle is a idler, casual and free to play game developed by Sylv and published by Jdog Corp. Released on July 27th 2023 has received 2,694 reviews of which 2,508 were positive and 186 were negative resulting in a rating of 8.9 out of 10. With 4,508 active players enjoying it for free, this strategy game has reached the #1 spot among the top free space games on Steam.
8.9
2,508
186
4,508
players
2. EVE Online
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. Thanks to its free to play tag and a daily player base of 3,730, this space game has secured the #2 spot in the ranking of free space games on Steam.
7.3
26,538
9,460
3,730
players
3. Galaxy Idle Clicker
Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe! Galaxy Idle Clicker is a idler, casual and clicker game developed and published by Soehnle. Released on July 18th 2024 has received 621 reviews of which 473 were positive and 148 were negative resulting in a rating of 7.2 out of 10. Thanks to its free to play tag and a daily player base of 1,220, this space game has secured the #3 spot in the ranking of free space games on Steam.
7.2
473
148
1,220
players
4. Star Trek Online
In Star Trek Online, the Star Trek universe appears for the first time on a truly massive scale. Players take the captain's chair as they command their own starship and crew. Explore strange new worlds, seek out new life and new civilizations, and boldly go where no one has gone before. Star Trek Online is a free to play, sci-fi and massively multiplayer game developed by Cryptic Studios and published by Arc Games. Released on January 31st 2012 has received 20,017 reviews of which 15,828 were positive and 4,189 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 1,200 players due to its free access, this strategy game has achieved the #4 position in the best free space games on Steam.
7.8
15,828
4,189
1,200
players
5. Star Trek Timelines
Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek. Star Trek Timelines is a free to play, strategy and space game developed and published by Tilting Point. Released on July 12th 2017 has received 1,417 reviews of which 932 were positive and 485 were negative resulting in a rating of 6.4 out of 10. Attracting a solid base of 221 players due to its free access, this strategy game has achieved the #5 position in the best free space games on Steam.
6.4
932
485
221
players
6. Super Sus
Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard! Super Sus is a multiplayer, online co-op and social deduction game developed and published by GIANT INTERACTIVE HK LIMITED. Released on July 30th 2024 has received 1,084 reviews of which 748 were positive and 336 were negative resulting in a rating of 6.7 out of 10. Attracting a solid base of 195 players due to its free access, this strategy game has achieved the #6 position in the best free space games on Steam.
6.7
748
336
195
players
7. Pixel Starships
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven. Pixel Starships is a sci-fi, space and strategy game developed and published by SavySoda. Released on May 23rd 2023 has received 2,684 reviews of which 1,976 were positive and 708 were negative resulting in a rating of 7.1 out of 10. Attracting a solid base of 164 players due to its free access, this strategy game has achieved the #7 position in the best free space games on Steam.
7.1
1,976
708
164
players
8. 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. 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. Attracting a solid base of 131 players due to its free access, this strategy game has achieved the #8 position in the best free space games on Steam.
8.9
6,074
505
131
players
9. Hades' Star
A unique space strategy game where thousands of players participate in one shared galaxy. Hades' Star is a free to play, space and strategy game developed and published by Parallel Space Inc. Released on February 27th 2019 has received 2,561 reviews of which 1,864 were positive and 697 were negative resulting in a rating of 7.1 out of 10. Attracting a solid base of 123 players due to its free access, this strategy game has achieved the #9 position in the best free space games on Steam.
7.1
1,864
697
123
players
10. Planet S
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 #10 spot among the most played free space games on Steam.
8.8
2,352
213
17
players