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Games Like SIRIUS-4

60+ similar titles based on shared tags and player behavior. Themes include Space Sim, Flight, Space, Simulation.

SIRIUS-4 header art

"Sirius-4" is a plot-oriented space simulator that gives the player complete freedom of action as a hired pilot of the "Sirius" unit. The action takes place on the outskirts of human space during a turbulent time for the galaxy after a global war.

Reviews: Mixed — 45% — of 20 reviews
Released: 2025-09-02
Developer: Triumvirate Games
Genres: Adventure, Indie, Simulation, Early Access
Platforms: Windows

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  1. #1 Vallen
    97% matchNo user reviews2023
    Dev: Rader Games
    Windows

    Space combat on a massive scale. Defend your allies, destroy the Xeris and claim victory for the Vallen! Your people need you, fly your ship in an intense battle in an asteroid field to secure the sector.

    Why similar: Space Sim 36%, Flight 27.1%, Futuristic 7.6%, Space 7.5%, Action 7.2%

  2. #2 PlanetDrop - A Tiny Space Adventure
    96% matchPositive88% of 16 reviews2021
    Dev: Ukio
    Windows

    PlanetDrop - A Tiny Space Adventure is a computer game where you command a spaceship in an orbit of a planet. Your primary task is to capture "drop zones" with your shuttles and commandos. You rely on stealth, agility and speed, rather than on firepower.

    Why similar: Space Sim 29.5%, Flight 19.7%, Simulation 16.4%, Adventure 10.6%, Action 6.7%

  3. #3 Leaving the formation
    96% matchNo user reviews
    Dev: D&A
    Windows

    Leaving the formation is a story-driven sci-fi combat simulation based on honest Newtonian flight physics.

    Why similar: Space Sim 37.7%, Flight 23.1%, Simulation 15.8%, Space 13%, Adventure 5.9%

  4. #4 Lightspeed
    95% match1 user reviews100% of 1 reviews2024
    Dev: MPS LabsPub: Atari
    Windows

    You're the only human in a huge, robotic space ship, flying at incredible speeds through deep space. Your mission: find and settle a new planet where humanity can thrive. Combat is inevitable, but you'll need more than flying skills to succeed.

    Why similar: Space Sim 32.9%, Flight 32.8%, Simulation 15.2%, Space 13.9%, Action 4.8%

  5. #5 STAR WARS™ - X-Wing Special Edition
    94% matchMostly Positive78% of 463 reviews2015
    Dev: LucasfimPub: LucasArts
    Windows · Mac
    Median: 12 minMean: 6.3 hrs≥1hr: 29%

    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?

    Why similar: Space Sim 46.2%, Space 16.2%, Simulation 15.2%, Flight 12%, Action 9.3%

  6. #6 Space Coaster VR
    94% matchNo user reviews2023
    Dev: Ryan Bissonnette
    Windows

    Jump into hyper speed and hold tight as you experience this galactic ride. Mars, Venus, Earth, the Stars and much more as you dive deeper into space. Remember the galaxy is vast and your journey starts here.

    Why similar: Flight 34.7%, Space Sim 34.1%, Space 14.6%, Simulation 14.3%, Indie 1.8%

  7. #7 Orbital Salvager
    93% matchNo user reviews2026
    Dev: RG GameDev, LLC
    Windows

    Orbital Salvager is a 2D space arcade simulation about mastering orbital mechanics to recover salvage ships from planetary orbit and deliver them to a salvage depot on time. Tether and tow salvage in various orbital patterns, manage fuel, and avoid obstacles in the daily and campaign modes.

    Why similar: Space Sim 37%, Flight 27.6%, Space 15.8%, Simulation 13%, Action 4.4%

  8. #8 First Parsec
    92% matchNo user reviews
    Dev: zamraky.cz
    Windows · Linux

    You’re a courier tasked with delivering a package across the galaxy. The path is dangerous - Smokers, greedy merchants, military meatheads, and aliens lurk at every turn. Switch ships, outfly enemies, and survive the chaos of a galaxy ruled by warring factions.

    Why similar: Space Sim 31.1%, Flight 30.5%, Space 13.7%, Simulation 7.7%, Futuristic 6.5%

  9. #9 General Purpose Trucker
    91% matchNo user reviews
    Dev: Fantastic Systems
    Windows

    Humanity is gone, but the machines never stopped producing, and now there's cargo to move. As a robot space trucker, you’ll jump between systems, navigate astronomical planetary distances, upgrade your junk-hauler, and keep the galaxy's commerce alive. People may be gone but the job's never done!

    Why similar: Space Sim 34.5%, Flight 26.2%, Simulation 18.5%, Futuristic 6.9%, Space 6.8%

  10. #10 Star Trek™: Starfleet Academy
    91% matchVery Positive83% of 130 reviews2015
    Dev: Interplay Entertainment Corp.
    Windows

    A must for any fan, Star Trek: Starfleet Academy is an action/flight simulator featuring filmed footage of the original Star Trek actors. Take your place among the best and brightest at Starfleet Academy!

    Why similar: Space Sim 32.5%, Flight 19.8%, Simulation 11.8%, Space 10.9%, Futuristic 7.1%

  11. #11 AGOS - A Game Of Space
    90% matchMixed63% of 103 reviews2020
    Dev: Ubisoft
    Windows

    Explore unique star systems in AGOS: A Game of Space! Scavenge resources, face the danger of space and save humankind.

    Why similar: Space Sim 41.9%, Flight 16.7%, Simulation 16.2%, Adventure 10.1%, Space 6.6%

  12. #12 Arvoch Alliance SE
    89% match5 user reviews80% of 5 reviews2026
    Dev: StarWraith 3D Games LLC
    Windows

    Advanced First Person Space Flight Combat Simulation.

    Why similar: Space Sim 33.9%, Flight 25.2%, Simulation 12.4%, Futuristic 10.3%, Space 9.9%

  13. #13 TwoBrains OneShip
    89% match2 user reviews100% of 2 reviews2025
    Dev: Z-Tech Studio
    Windows

    Two players. One ship. Infinite chaos. Deliver cargo across the galaxy, upgrade your ship, and try not to explode — or each other.

    Why similar: Space Sim 32.5%, Flight 32.4%, Space 13.8%, Simulation 12.3%, Action 4.7%

  14. #14 Alliance Tales: Battle for the Frontier
    88% matchNo user reviews
    Dev: Urban Logic Games
    Windows

    Alliance Tales is a linear, story-driven space combat sim inspired by 90s classics like Wing Commander and Tie Fighter. Take part in fast-paced space battles in a campaign that takes you on the hunt for a missing friend while foiling a plot to take over the Frontier Colonies.

    Why similar: Flight 31.8%, Space Sim 29.2%, Space 13.9%, Simulation 10%, PvE 7.5%

  15. #15 STAR WARS™ X-Wing vs TIE Fighter - Balance of Power Campaigns™
    87% matchMostly Positive76% of 301 reviews2015
    Dev: Totally GamesPub: LucasArts
    Windows
    Median: 6 minMean: 4.5 hrs≥1hr: 23%

    Real-time against real pilots; this is Star Wars space combat as it was meant to be! Featuring challenging real-time dogfights of 2 to 8 players, Star Wars™: X-Wing vs. TIE Fighter is one of the most historically significant space combat simulators ever made.

    Why similar: Space Sim 41.2%, Simulation 21.5%, Space 16.6%, Action 10.8%, Flight 9.9%

  16. #16 DarkSpase
    86% matchNo user reviews2025
    Dev: Devon James
    Windows

    Galaga meets Tie Fighter meets Elite Dangerous. A sci-fi starfighter combat sim with NASA-accurate Keplerian orbits. Voyage across the Solar System with real-time FTL. Engage Dregg swarms in dynamic PvE encounters. Outmaneuver invaders by pushing Newtonian physics to the limit at 150 m/s.

    Why similar: Space Sim 32.5%, Flight 24.9%, Simulation 16.2%, Futuristic 6.3%, Action 6.2%

  17. #17 Galactic Command Echo Squad SE
    86% match3 user reviews0% of 3 reviews2014
    Dev: 3000AD
    Windows

    Galactic Command Echo Squad SE is a high-end and very challenging space/planetary combat game. It offers a thrilling campaign, instant action combat sessions as well as a sandbox mode allowing you to explore the game's universe while battling hostile Insurgent forces among others.

    Why similar: Space Sim 27.2%, Flight 21.1%, Space 12.4%, Simulation 11.3%, Futuristic 8.4%

  18. #18 Arc Savior
    85% matchMostly Positive72% of 29 reviews2019
    Dev: Squid Monkey Studios
    Windows

    Discover a beautiful and brutal universe through three immersive stories. Champion blazing fast dog-fights, Out wit aggressive defense systems and overcome constant overwhelming odds. This is your goal, this is your duty, this is your way of life...

    Why similar: Space Sim 30.6%, Flight 23.3%, Simulation 23%, Space 12.1%, Action 7.7%

  19. #19 Evochron Mercenary
    84% matchMostly Positive77% of 434 reviews2012
    Dev: StarWraith 3D Games LLC
    Windows
    Median: 2.7 hrsMean: 6.8 hrs≥1hr: 73%

    The life of an independent mercenary is rarely without excitement. Your spacecraft awaits and your adventure begins in the Sapphire star system.

    Why similar: Space Sim 30.2%, Space 21.9%, Simulation 18.8%, Flight 12.8%, Open World 5.9%

  20. #20 Sylph
    84% matchNo user reviews2026
    Dev: Softmax Foundries
    Windows

    Operate a spacecraft at the edge of a singularity. Use realistic orbital mechanics and Newtonian physics to explore a star system around a black hole and what lies beyond.

    Why similar: Space Sim 33.9%, Flight 33.3%, Simulation 11.6%, Space 11.5%, Futuristic 3.8%

  21. #21 STAR WARS™: TIE Fighter Special Edition
    83% matchVery Positive81% of 631 reviews2015
    Dev: Totally GamesPub: LucasArts
    Windows · Mac
    Median: 12 minMean: 6.4 hrs≥1hr: 28%

    The Imperial Navy is called upon to eradicate the last of the rebellion and restore law and order. As an Imperial navy starfighter pilot, you will safeguard imperiled lives thoughout the galaxy. Join the Emperor's cause in eliminating the Rebel uprising as the Empire strikes back!

    Why similar: Space Sim 50.7%, Space 20%, Flight 12.8%, Action 10%, Simulation 5.4%

  22. #22 Super Starship
    82% match2 user reviews100% of 2 reviews2026
    Dev: Les Bird
    Windows · Mac

    A futuristic sci-fi persistent universe exploration game with one million stars and 18 million planets and moons. Fly your ship to any star and explore its solar system. Claiming stars, planets and moons will make them yours forever - other players will see your discoveries and you will see theirs.

    Why similar: Space Sim 44.7%, Simulation 24.6%, Futuristic 10.4%, Space 9.4%, 3D 4.8%

  23. #23 Tachyon: The Fringe
    82% matchVery Positive89% of 244 reviews2009
    Dev: NovaLogic
    Windows
    Median: 24 minMean: 4.5 hrs≥1hr: 36%

    Caught in the middle of a violent conflict on the fringe of the galaxy — your ability to survive will depend on your piloting skills and combat savvy as a mercenary space fighter. But, as you explore the vastly detailed world of Tachyon: The Fringe, you will often find that the most powerful weapon on your ship is in your head.

    Why similar: Space Sim 51.5%, Simulation 31.1%, Space 17.4%

  24. #24 TheFlagship
    81% matchNo user reviews
    Dev: NeveraiN Games
    Windows

    "The Flagship" is a singleplayer third-person space warship roguelike game. From destroyers to battleships, choose your vessel and equip it to face node-based roguelike challenges, each adventure is a different experience. Your ship, equipment, skill level and roguelike ability build will be tested.

    Why similar: Space Sim 35.5%, Flight 20.9%, Space 13.4%, Simulation 10.6%, Futuristic 7.6%

  25. #25 KOV
    80% match4 user reviews75% of 4 reviews2023
    Dev: FriyingPan
    Windows

    ¿Podrás encontrar la manera de alimentar a los planetas vivientes y evitar su destrucción inminente? Enfréntate a los furtivos, sortea la vigilancia de la policía y desata el potencial de tu nave mientras te sumerges en una narrativa épica y te llevará más allá de las fronteras de lo conocido.

    Why similar: Space Sim 45.9%, Flight 31.6%, Adventure 16.3%, 3D 4.5%, Indie 1.1%

  26. #26 Parkan 2
    81% matchMostly Positive73% of 382 reviews2014
    Dev: NikitaPub: Fulqrum Publishing
    Windows
    Median: 2.2 hrsMean: 4.4 hrs≥1hr: 93%

    Parkan II is an original concept game that will allow you to feel as a pilot of a spacecraft lost somewhere in the universe. Become a pirate or mercenary, get money to buy the most powerful cruiser and show them all who is to be the new master of the galaxy. Unforgettable adventures in the Parkan II universe await you!

    Why similar: Simulation 26.7%, Space Sim 25.9%, Space 23.2%, Adventure 15.1%, Action 9%

  27. #27 Rogue System
    79% matchMixed67% of 274 reviews2022
    Dev: Digits Crossed Interactive, LLCPub: Image Space Incorporated
    Windows

    Our goal is to depict the possibilities of space exploration & combat within a realistic environment- to emphasize the "science" in science-fiction. Key features to include: proper orbital mechanics for all objects in space, detailed ship system control, functionality, inter-dependency & damage reaction.

    Why similar: Space Sim 58.9%, Simulation 28.3%, Space 12.8%

  28. #28 Rebel Galaxy Outlaw
    79% matchMixed64% of 1,122 reviews2020
    Dev: Double Damage Games
    Windows
    Median: 36 minMean: 9.1 hrs≥1hr: 42%

    Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.

    Why similar: Space Sim 38.7%, Simulation 10.3%, Flight 10.1%, Futuristic 8.2%, Space 7.8%

  29. #29 House of the Dying Sun
    78% matchVery Positive90% of 2,001 reviews2016
    Dev: Marauder Interactive, LLC
    Windows
    Median: 1.0 hrsMean: 2.6 hrs≥1hr: 50%

    House of the Dying Sun is a tactical space shooter that puts you in the cockpit of the universe's most terrifying starfighter. Hunt the enemies of the Empire and bring ruin to their people.

    Why similar: Space Sim 42.3%, Space 17%, Flight 16.5%, Simulation 15.4%, Action 6.2%

  30. #30 Freelancers: Rogue Skies
    77% match2 user reviews0% of 2 reviews2025
    Dev: ExodusIndiePub: GameLab
    Windows

    FREELANCERS: ROGUE SKIES An open-world single-player space combat roguelite where you pilot customizable starfighters, engage in tactical dogfights, and explore dynamic star systems across a galaxy shaped by war and opportunity.

    Why similar: Space Sim 30.5%, Flight 22%, Simulation 19.8%, Adventure 9.4%, Action 7.9%

  31. #31 REAL MOON
    76% matchMixed68% of 112 reviews2025
    Dev: historia Inc.
    Windows

    Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.

    Why similar: Space Sim 46.4%, Simulation 24.5%, Space 15.2%, Open World 6.7%, Adventure 6.4%

  32. #32 Under The Stars
    78% matchNo user reviews2022
    Dev: Sevufn
    Windows

    A space theme of a small casual shooting game. There are two perspectives, the character and the ship. The player can control the character/ship, dodge or shoot enemies, and replenish energy and various items consumed by collecting. Collect discarded parts and items to enhance character abilities.

    Why similar: Space Sim 35.9%, Flight 34%, Space 14.9%, Combat 5.3%, Simulation 4.5%

  33. #33 Helium Rain
    76% matchMostly Positive79% of 324 reviews2018
    Dev: Deimos Games
    Windows · Linux
    Median: 3.3 hrsMean: 8.7 hrs≥1hr: 74%

    Trade your wares and eliminate the competition in a cutthroat world. Buy new ships and stations to mine and haul resources. Explore the vast emptiness of space.

    Why similar: Space Sim 50.1%, Space 19.2%, Simulation 16.7%, Trading 7.7%, Action 4.2%

  34. #34 X: Beyond the Frontier
    77% matchMostly Positive75% of 382 reviews2010
    Dev: Egosoft
    Windows
    Median: 30 minMean: 5.0 hrs≥1hr: 39%

    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.

    Why similar: Space Sim 28.3%, Simulation 21.2%, Space 19.9%, Trading 12.7%, Flight 11.5%

  35. #35 FSX SpacePort
    75% matchNo user reviews
    Dev: TerraBuilder
    Windows

    Spaceflight add-on for Microsoft Flight Simulator X

    Why similar: Space Sim 42.1%, Simulation 38.5%, Space 19.4%

  36. #36 Between the Stars
    73% matchMostly Positive74% of 2,427 reviews2024
    Dev: Isolated Games
    Windows
    Median: 54 minMean: 8.9 hrs≥1hr: 49%

    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.

    Why similar: Space Sim 33.7%, Space 20.5%, Simulation 15.2%, Flight 9%, Adventure 7.6%

  37. #37 Coeus Plan
    75% match7 user reviews29% of 7 reviews2021
    Dev: Golden Dragon StudioPub: Golden Dragon Studio
    Windows

    Immerse yourself in an epic space battle with alien enemies.

    Why similar: Space Sim 48.1%, Flight 36%, Action 10%, 3D 5.1%, Singleplayer 0.8%

  38. #38 Lane Drifter
    74% matchNo user reviews2025
    Dev: Lars "Juksefantomet" GravPub: Last Leaf Games
    Windows · Linux

    A sci-fi arcade dodger where you pilot a ship through asteroid fields using precision, gravity bombs, and mining tools. With no weapons, survive by drifting, dodging, and scoring based on distance and hazards avoided. What else might be lurking in this galaxy?

    Why similar: Space Sim 39.8%, Simulation 23.5%, Flight 22.5%, Action 9.1%, 3D 4.6%

  39. #39 X3: Reunion
    74% matchMostly Positive72% of 725 reviews2006
    Dev: Egosoft
    Windows · Mac · Linux
    Median: 36 minMean: 8.8 hrs≥1hr: 41%

    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.

    Why similar: Space Sim 34%, Space 22.2%, Simulation 14.8%, Flight 14.7%, Trading 7.3%

  40. #40 Space Duels
    73% matchNo user reviews
    Dev: Benjamin Chen
    Windows

    1v1 online multiplayer spaceship duels with realistic physics

    Why similar: Space Sim 35.4%, Flight 28.1%, Simulation 14.4%, Futuristic 9.2%, Action 5.3%

  41. #41 Alliance Peacefighter
    71% matchVery Positive85% of 54 reviews2025
    Dev: Urban Logic Games
    Windows

    A linear, story-driven space sim in the style of 90s classics like X-Wing and Wing Commander. As a newly qualified Alliance pilot, you find yourself caught up in a plot to break the fragile peace between two galactic superpowers.

    Why similar: Space Sim 32.6%, Flight 30.9%, Space 14.1%, PvE 7.8%, Simulation 6.9%

  42. #42 Sector One
    73% match5 user reviews60% of 5 reviews2023
    Dev: Playalley
    Windows

    Sector One takes you on a journey through 6 different worlds, where your goal is to fly your spaceship as long as you can, neutralizing enemies on the way. Each world offers a unique visual experience but also comes with different kinds of challenges that you need to overcome.

    Why similar: Space Sim 38.5%, Flight 29%, Simulation 14.2%, Space 10%, Action 8%

  43. #43 Starship Fighters: Space Combat Simulator
    72% match2 user reviews0% of 2 reviews2025
    Dev: Hard Shark Games
    Windows

    Pilot your starship in Starship Fighters, a realistic space combat simulator. Engage in intense battles, explore vast galaxies, and unleash destruction with an arsenal of powerful weapons in a universe teeming with enemies!

    Why similar: Space Sim 33%, Flight 25.1%, Simulation 10.8%, Space 8.7%, Futuristic 8.5%

  44. #44 The Mystery Of The Moon
    72% match3 user reviews67% of 3 reviews2023
    Dev: HUANG MEI ZHAO
    Windows

    The game of survival and construction on the surface of the moon. Learn to build a base on the surface of the moon, maintain survival, explore and discover the secrets inside the moon, and solve abnormal problems.

    Why similar: Space Sim 28.4%, Flight 24.1%, Space 12%, Futuristic 10%, Simulation 9%

  45. #45 Space Mechanics: repair | hiring | crafting
    71% matchPositive91% of 11 reviews2025
    Dev: MintCat
    Windows

    In "Space Mechanics: Repair | Hiring | Craft" you are the owner of a space repair station in which you have to work. Repair spaceships, get money for it, hire them and create items for sale or for your own purposes.

    Why similar: Space Sim 43.1%, Simulation 16%, Futuristic 14%, Space 13.5%, Trading 5.7%

  46. #46 ARISING
    71% matchNo user reviews
    Dev: Cold Capacitor
    Windows

    First person space combat and exploration in an open world in a variety of star systems. Pilot ships, fight, run missions and trade.

    Why similar: Space Sim 31.4%, Flight 23.1%, Space 10.4%, Simulation 7.9%, Futuristic 7.2%

  47. #47 Cosmic Miners
    69% matchMixed58% of 60 reviews2025
    Dev: bitByte Games
    Windows

    Explore asteroid fields, trade rare resources, and upgrade your ship in Cosmic Miners. Navigate faction alliances, complete missions, and rise through the ranks in a dynamic space adventure where your choices shape your path to cosmic power.

    Why similar: Space Sim 33.1%, Flight 19.3%, Space 11.5%, Simulation 9%, Futuristic 7.6%

  48. #48 STAR WARS™ - X-Wing Alliance™
    70% matchVery Positive83% of 500 reviews2015
    Dev: Totally GamesPub: LucasArts
    Windows
    Median: 6 minMean: 4.3 hrs≥1hr: 20%

    A neutral family fights for its business - and its survival - and is swept up in the struggle against the encroaching Empire. You must defy the strong-arm tactics of a rival family who will stop at nothing to destroy your trading company.

    Why similar: Space Sim 51%, Space 19.3%, Flight 14.1%, Action 9.6%, Simulation 4.8%

  49. #49 Ounba
    70% matchNo user reviews2026
    Dev: Haruka NitakaPub: Haftas
    Windows

    Dive into space in Ounba: collect coins, diamonds, ammo, and energy while avoiding enemy fire. Play solo or with a friend in split-screen, save anytime, and challenge the community across five unique levels with increasing excitement and challenges.

    Why similar: Space Sim 35.4%, Flight 25.5%, Simulation 17.9%, Adventure 6.8%, 3D 4.3%

  50. #50 Superstring Transition: The Warp Ancestor
    69% matchNo user reviews
    Dev: Gabriel DzsurdzsaPub: The Warp Ancestor
    Windows

    An AI returns from a relativistic test flight to find humanity gone. Explore a real NASA‑based solar‑system ephemeris, pilot three spacecraft across accurate topological data, and push the limits of physics as you attempt escalating WARP.

    Why similar: Space Sim 40.1%, Flight 21.4%, Simulation 16.9%, Futuristic 6.8%, Adventure 6.2%

  51. #51 Interstellar Pilot 2
    68% matchVery Positive92% of 153 reviews2023
    Dev: Pixelfactor Ltd.
    Windows

    The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind. Play how you like in this open world space-sim developed by Pixelfactor.

    Why similar: Space Sim 37.9%, Simulation 22.2%, Space 11.4%, Action 8.6%, Open World 5.2%

  52. #52 Space Simulator
    70% matchMostly Negative36% of 162 reviews2018
    Dev: Stuka Games IncPub: Brixton Dynamics Ltd
    Windows

    Realistic simulation of spaceflight in a full sized Solar System, with all the planets and their major moons. using real forces, distances, velocities and time. Chapter 1: The Apollo Days. Incredibly detailed Apollo Program missions starting with Apollo 8 lunar orbit missions.

    Why similar: Space Sim 40.3%, Simulation 35.8%, Space 23.9%

  53. #53 Univoyager
    69% matchNo user reviews2026
    Dev: Damiano VitulliPub: Neondev Sas
    Windows

    Experience a 1:1 scale, procedurally generated universe with seamless exploration from planets to stars. Journey across the cosmos with zero loading screens and realistic Newtonian physics. Trade, fight, and survive in a post-apocalyptic galaxy where gravity is your only boundary.

    Why similar: Space Sim 35%, Flight 24.3%, Space 9.9%, Simulation 8.3%, Open World 6%

  54. #54 GravBoost
    67% match3 user reviews100% of 3 reviews2026
    Dev: Emergent Dynamics Studio
    Windows

    In GravBoost, gravity is your greatest ally and your deadliest foe. Master the art of the gravitational slingshot to intercept orbital targets. Manage your fuel and time wisely in this physics-driven space sim where precision is the only way to survive the cosmic pull.

    Why similar: Space Sim 41.5%, Flight 26.5%, Simulation 20%, Space 10.5%, Indie 1%

  55. #55 Rogue Stargun
    67% match7 user reviews86% of 7 reviews2024
    Dev: Du Games
    Windows

    Rogue Stargun is an action-packed space combat sim where you pilot 5 unique starfighters with interactive VR cockpits in a story-driven single player campaign consisting of over 24 unique missions covering both land and space.

    Why similar: Space Sim 40.7%, Simulation 19.2%, Space 10.8%, Flight 7.9%, Futuristic 7.5%

  56. #56 Space Journey
    68% match7 user reviews43% of 7 reviews2020
    Dev: Starmops
    Windows · Mac

    Space Journey is a first-person space simulator. You will explore 6 levels: Asteroid Belt, Supernova, Orion, Infinite Space, Nebula and Dark Void.

    Why similar: Simulation 34.4%, Adventure 21.3%, Space Sim 20%, Action 12.2%, Space 7.2%

  57. #57 Space Mercs
    68% matchMixed65% of 48 reviews2019
    Dev: Bearded Giant Games
    Windows · Linux

    Space Mercs is an extreme arcade space combat game where the amount of projectiles and lasers on-screen is only toppled by the amount of stars in the universe! Will you be able to complete all the mercenary missions and become the best pilot in the Galaxy?

    Why similar: Space Sim 34.7%, Flight 25.1%, Space 12.7%, Simulation 9.3%, Action 7%

  58. #58 Stardust Origins
    67% matchMostly Positive73% of 22 reviews2022
    Dev: Nikolaj Piet PaghPub: PetskullGames
    Windows

    You are a pilot, seeking revenge on your deceitful father who threw you into unknown space. Can you find your way back and get revenge? Experience a mix of 2D topdown space adventure and explore planets to discover quests, negotiate trades, mine, hunt and survive in an expanding universe.

    Why similar: Space Sim 29.8%, Space 16%, Trading 14.6%, Simulation 12.1%, Flight 8.2%

  59. #59 Mardori
    66% match2 user reviews50% of 2 reviews2023
    Dev: Iscreamdye
    Windows

    Mardori is a spaceshooter game with aspects of ARPG's. Upgrade your ship with various materials from missions, craft your equipment with damage or defense mods., create new weapons using blueprints, unlock new missions with Stargate.

    Why similar: Space Sim 34.8%, Flight 25.2%, Simulation 16.5%, Space 15.2%, Adventure 3.6%

  60. #60 Dreamship Sugarcube
    65% match4 user reviews100% of 4 reviews2025
    Dev: LimitlessBullet
    Windows

    Still confused and checking the fuel gauge mid-flight? Struggling to find the target when flying under a planet? Sorry, its all on the author! Due to low player numbers and the my internships, theres been no game update. If you enjoy it and have ideas for improvement, leave a comment or email us.

    Why similar: Space Sim 36.9%, Flight 28.4%, Space 14.1%, Simulation 10.4%, Adventure 7.1%

Based on tag similarity + player behavior
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