- #1 STAR WARS™ Battlefront II (Classic, 2005)
97% matchVery Positive95% of 54,064 reviews2009
Dev: Pandemic StudiosPub: Lucasfilm
Windows
Median: 2.7 hrsMean: 18.0 hrs≥1hr: 70%
Join the rise of Darth Vader’s elite 501st Legion of Stormtroopers as you fight through an all new story-based saga where every action you take impacts the battlefront and, ultimately, the fate of the Star Wars galaxy.
Why similar: Space 22.7%, FPS 20.8%, Sci-fi 16.5%, Multiplayer 15.7%, Action 8.1%
Why You'll Like It: This remains the definitive experience for large-scale combined-arms warfare that transitions between ground combat and space boarding actions.
- #2 HELLDIVERS™ 2
96% matchMostly Positive75% of 1,143,041 reviews2024
Dev: Arrowhead Game StudiosPub: PlayStation Publishing LLC
Windows
Median: 45.1 hrsMean: 103.2 hrs≥1hr: 98%
The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter.
Why similar: Space 26.1%, Multiplayer 22.4%, Sci-fi 21.1%, Action 9.5%, Co-op 7.5%
Why You'll Like It: It captures the chaotic, high-stakes, and tactical sci-fi combat feel that makes the infantry segments of the seed game so engaging.
- #3 Natural Selection 2
96% matchVery Positive85% of 13,335 reviews2012
Dev: Unknown Worlds Entertainment
Windows
Median: 2.9 hrsMean: 24.2 hrs≥1hr: 85%
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
Why similar: FPS 33.1%, Multiplayer 20.8%, Sci-fi 15.5%, Action 7.3%, Space 7%
Why You'll Like It: This game perfectly executes the hybrid FPS and RTS commander gameplay found in the seed game's tactical management layers.
- #4 PlanetSide 2
95% matchVery Positive81% of 74,576 reviews2012
Dev: Rogue Planet GamesPub: Daybreak Game Company
Windows
Median: 3.6 hrsMean: 53.8 hrs≥1hr: 77%
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
Why similar: FPS 38.1%, Multiplayer 13%, Sci-fi 11.8%, Action 7.9%, Space 7.6%
Why You'll Like It: It provides a massive-scale, persistent battlefield where infantry, vehicles, and aircraft interact in a way that mirrors the seed game's scope.
- #5 Marauders
94% matchMixed68% of 21,396 reviews2022
Dev: Small Impact Games
Windows
Median: 10.2 hrsMean: 30.9 hrs≥1hr: 89%
Marauders is a tactical first-person multiplayer looter shooter set in a sci-fi universe. As a space pirate, work solo, or in a squad with up to 3 other players to navigate a hostile battleground, hunt for loot, craft new weapons and gear, and salvage what you’ll need to survive.
Why similar: FPS 37.5%, Space 28%, Tactical 10.7%, First-Person 9.5%, Action 8%
Why You'll Like It: It focuses heavily on the gritty, tactical space-boarding and infantry combat mechanics that define the boarding sequences in the seed game.
- #6 Executive Assault
93% matchVery Positive85% of 1,455 reviews2015
Dev: Hesketh Studios Ltd
Windows
Median: 3.4 hrsMean: 7.1 hrs≥1hr: 78%
Executive Assault is an indie real-time strategy/first-person shooter where you can not only build your base and create armies, but also take control of your units and fight as one of them.
Why similar: FPS 38.6%, Sci-fi 17.6%, Multiplayer 12.9%, Action 11.4%, First-Person 5.5%
Why You'll Like It: It features a unique blend of RTS base-building and FPS combat that allows players to command fleets while fighting on the ground.
- #7 Void Crew
90% matchVery Positive87% of 8,248 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.0 hrsMean: 16.5 hrs≥1hr: 94%
Void Crew is a Chaotic, Co-op Roguelite game for 1 to 6 players: Outfit your spaceship and crew for thrilling quests, brave fierce enemies in Space Battles... and try not to panic!
Why similar: Space 29.9%, Multiplayer 24.7%, Sci-fi 13.1%, Co-op 10.7%, First-Person 6.4%
Why You'll Like It: It emphasizes the cooperative, multi-crew ship management and tactical combat experience that is central to the seed game's capital ship gameplay.
- #8 Infinity: Battlescape
91% matchVery Positive80% of 754 reviews2019
Dev: I-Novae Studios, LLC
Windows
Median: 3.1 hrsMean: 10.0 hrs≥1hr: 74%
Infinity: Battlescape is a multiplayer space combat sim supporting hundreds of players on a single server. Join one of the corporate factions and fight for domination of a seamless, true-to-scale procedural star system. Participate in massive space and planetary battles involving hundreds of ships.
Why similar: Space 44.6%, Sci-fi 18.1%, Simulation 16.9%, Action 12.8%, Indie 7.6%
Why You'll Like It: It offers a massive, persistent space combat environment that captures the scale and intensity of the seed game's fleet engagements.
- #9 Barotrauma
87% matchVery Positive94% of 86,224 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 8.9 hrsMean: 54.8 hrs≥1hr: 91%
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
Why similar: Multiplayer 32.9%, Sci-fi 23.8%, Co-op 14.9%, Simulation 12.8%, Action 7.2%
Why You'll Like It: It provides a tense, crew-focused survival experience that requires tactical coordination within a complex, hostile sci-fi vessel.
- #10 Deep Space Battle Simulator
89% matchMostly Positive79% of 411 reviews2021
Dev: yeswecamp
Windows · Linux
Median: 42 minMean: 3.7 hrs≥1hr: 37%
Two teams of players control their capital ship in an epic battle. Customize your ship, control its movement, weapons, and energy distribution or go to one of the hangars to join the battle in a smaller fighter!
Why similar: Space 21.9%, FPS 16.9%, Sci-fi 16.2%, Multiplayer 14.6%, Simulation 8%
Why You'll Like It: It focuses on the large-scale capital ship combat and crew management aspects that are core to the seed game's appeal.
- #11 Empyrion - Galactic Survival
88% matchMostly Positive79% of 34,194 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.8 hrs≥1hr: 77%
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!
Why similar: Space 27.8%, FPS 21.4%, Sci-fi 16.2%, Multiplayer 13.8%, Simulation 11.7%
Why You'll Like It: This sandbox title allows for the same seamless transition from FPS combat to piloting custom-built space vessels.
- #12 Interstellar Marines
89% matchMixed54% of 7,874 reviews2013
Dev: Zero Point Software
Windows · Mac · Linux
Median: 48 minMean: 6.8 hrs≥1hr: 45%
UPDATE 28 AVAILABLE - Interstellar Marines is an immersive tactical sci-fi First Person Simulator in the making, offering a unique blend of tactical gameplay, dynamic environments and non-scripted AI. Play Singleplayer or Co-op/PvP on servers around the world.
Why similar: FPS 25.8%, Sci-fi 14.2%, Multiplayer 12.8%, Tactical 10.6%, Action 8.4%
Why You'll Like It: It focuses on the grounded, tactical FPS combat within a sci-fi setting that matches the infantry feel of the seed game.
- #13 Guns of Icarus Alliance
86% matchMostly Positive76% of 1,437 reviews2017
Dev: Muse Games
Windows · Mac · Linux
Median: 42 minMean: 15.5 hrs≥1hr: 44%
Own the skies in steam-powered airships! Guns of Icarus Alliance is a team-based online game that pits co-op crews against both rival teams and an AI that learns your tactics. Players become part of the story as each battle shapes history in an ever-changing steampunk world.
Why similar: Indie 62.9%, Multiplayer 11.7%, Simulation 8.5%, Action 7.8%, Co-op 4.2%
Why You'll Like It: It is a masterclass in team-based, multi-crew ship combat where every player has a specific role to keep the vessel operational.
- #14 House of the Dying Sun
85% matchVery Positive90% of 2,016 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 38.3%, Simulation 15.1%, Sci-fi 14.7%, Action 12.9%, Indie 6.8%
Why You'll Like It: It offers a tactical, command-focused space combat experience with a dark, atmospheric sci-fi aesthetic.
- #15 Disputed Space
84% matchMixed65% of 99 reviews2017
Dev: ShilohGames
Windows · Mac · Linux
Experience epic space battles while piloting a small, fast fighter ship as part of a fleet that lashes out against enemy factions across stunning procedurally generated star systems in Disputed Space.
Why similar: Space 23.9%, FPS 16.5%, Action 14.6%, Sci-fi 13.8%, Indie 8.7%
Why You'll Like It: It provides a focused, action-oriented space combat experience that captures the intensity of the seed game's dogfights.
- #16 Strike Suit Zero
84% matchMostly Positive77% of 1,667 reviews2013
Dev: Born Ready Games
Windows · Mac · Linux
Median: 1.7 hrsMean: 3.4 hrs≥1hr: 70%
Pilot the mecha Strike Suit across massive fleet battles where your dogfighting skills decide Earth's fate. Fast, frantic space combat with capital ship destruction, multiple endings, and a universe that's anything but empty. This is space combat reborn.
Why similar: Space 45.8%, Sci-fi 23%, Action 11.8%, Simulation 9.2%, Indie 5.3%
Why You'll Like It: It provides the fast-paced, arcade-style space combat found in the fighter pilot segments of the seed game.
- #17 X Rebirth
83% matchMixed44% of 7,309 reviews2013
Dev: Egosoft
Windows · Mac · Linux
Median: 3.3 hrsMean: 19.2 hrs≥1hr: 88%
In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.
Why similar: Space 48.9%, Sci-fi 22.9%, Simulation 18.9%, Action 8.1%, Singleplayer 1.1%
Why You'll Like It: It offers a deep simulation of space life and combat, providing a similar sense of scale and ship interaction.
- #18 GoD Factory: Wingmen
82% matchMixed68% of 298 reviews2014
Dev: Nine Dots StudioPub: Nine Dots Publishing
Windows · Mac · Linux
Median: 3.6 hrsMean: 8.8 hrs≥1hr: 86%
GoD Factory: Wingmen is a multiplayer space combat game played through fast-paced and intensely tactical 4 vs 4 player matches. Customize gunships and start frantic battles with your friends to survive the relentless fire of enemy players.
Why similar: Space 45.3%, Multiplayer 17.7%, Sci-fi 11.4%, Simulation 11.3%, Action 9.8%
Why You'll Like It: It features tactical, team-based space combat with a heavy focus on ship customization and role-based gameplay.
- #19 Interstellar Rift
80% matchMixed68% of 1,660 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.5 hrs≥1hr: 83%
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!
Why similar: Space 35.7%, Sci-fi 23.7%, Simulation 12.5%, First-Person 10.9%, Action 9.9%
Why You'll Like It: It emphasizes the ship-building and crew-management aspects of space exploration and combat.
- #20 Celestial Command
81% matchMixed63% of 698 reviews2014
Dev: Romenics
Windows · Mac · Linux
Median: 1.5 hrsMean: 6.3 hrs≥1hr: 62%
Mine asteroids, salvage space debris, design your own small or massive spacecraft using individual functional components, complete missions, and engage in battles against enemies in a vast galaxy with realistic physics based on orbital mechanics or in a classic physics mode.
Why similar: Space 49.2%, Simulation 18%, Sci-fi 17.2%, Action 9.4%, Indie 6.2%
Why You'll Like It: It focuses on the physics-based construction and tactical combat of space vessels in a way that mirrors the seed game's technical depth.
- #21 Jump Space
75% matchVery Positive86% of 10,811 reviews2025
Dev: Keepsake Games
Windows
Median: 6.1 hrsMean: 10.2 hrs≥1hr: 92%
Jump Space (formerly Jump Ship) is a mission based co-op PvE for 1-4 players, where you are the crew of a spaceship. Transition seamlessly from crewing the ship to on-foot exploration and space walks. Explore, upgrade, and survive intense encounters in deep space together.
Why similar: Space 26%, FPS 24.7%, Sci-fi 15.8%, Multiplayer 8.9%, Co-op 7.5%
- #22 Kinetic Void
81% matchOverwhelmingly Negative17% of 1,556 reviews2014
Dev: Badland Studio
Windows · Mac · Linux
Median: 1.9 hrsMean: 3.7 hrs≥1hr: 76%
Kinetic Void is a 3D space adventure with a focus on customization and enjoyable space simulation. The shipyard allows players to construct their ship piece by piece. Ships can be as simplistic as a cockpit, a hull, a engine and a gun, or as complex as a player wants.
Why similar: Space 51.1%, Sci-fi 18%, Simulation 15.4%, Action 8.2%, Indie 6.1%
Why You'll Like It: It allows for deep ship customization and tactical combat in a sandbox environment that rewards engineering and planning.
- #23 Void Destroyer
79% matchMixed60% of 351 reviews2015
Dev: Iteration 11
Windows
Median: 18 minMean: 3.2 hrs≥1hr: 30%
Combining the best of space combat and real time strategy. Victory can be tactical, a dogfight or capital ship slugging match - depending on how you decide to achieve it. Space combat on a RTS scale with space sim savagery.
Why similar: Space 41.9%, Sci-fi 19.9%, Simulation 19.5%, Action 13.1%, Indie 5.7%
Why You'll Like It: It combines strategy and space combat in a way that mirrors the command elements and fleet management of the seed game.
- #24 Subdivision Infinity DX
78% matchMostly Positive75% of 105 reviews2019
Dev: MistFly GamesPub: Crescent Moon Games
Windows
Subdivision Infinity is an immersive and pulse pounding sci-fi space shooter featuring stunning graphics and tight spaceship game play. Hunt down and destroy enemy spacecraft, crush capital ships, mine asteroids for rare minerals, and find blueprints to craft amazing new vessels!
Why similar: Space 37.3%, Sci-fi 23.9%, Action 16.4%, Indie 9.3%, Simulation 5.2%
Why You'll Like It: It offers a more accessible, arcade-style space shooter experience that captures the combat intensity of the seed game.
- #25 The Battle of Sol
79% matchMixed57% of 102 reviews2015
Dev: Bit Planet Games, LLC
Windows
Median: 18 minMean: 12.1 hrs≥1hr: 24%
The Battle of Sol is an intense space action game where you participate in epic capital ship battles, thrilling dogfights, space station raids, and much more as you liberate humanity's solar system from enemies determined to bring us to its fiery end.
Why similar: Space 33.2%, Simulation 23.6%, Sci-fi 17.8%, Action 16.7%, Indie 8.7%
Why You'll Like It: It delivers a cinematic, action-heavy space combat experience that feels like a slice of the seed game's larger battles.
- #26 Executive Assault 2
74% matchVery Positive83% of 1,738 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.8 hrsMean: 8.4 hrs≥1hr: 76%
The RTS/FPS phenomenon has moved into space! Build your base on an asteroid, command fleets of starships for epic battles, pilot fighters, mine and trade resources, assemble robots to defend or assault other stations. Take sole command or share the glory as you fight for control of the quadrant.
Why similar: Space 25.5%, FPS 24.3%, Sci-fi 14.2%, Multiplayer 13.8%, Action 6.9%
- #27 Skyfront VR
77% matchMostly Positive73% of 150 reviews2019
Dev: Levity Play
Windows
Skyfront is a fast-paced multiplayer FPS built exclusively for VR. The game launches you into mesmerising zero-G arenas. But not before equipping you with an array of awesome weapons and impressive special abilities.
Why similar: FPS 20.8%, Sci-fi 13.2%, Multiplayer 13.1%, Simulation 12.5%, Action 11.3%
- #28 Miner Wars 2081
78% matchMostly Negative36% of 391 reviews2012
Dev: Keen Software House
Windows
Median: 36 minMean: 4.5 hrs≥1hr: 39%
Operate an advanced mining ship in a fully destructible and open-world environment!
Why similar: Space 32.7%, Simulation 20.4%, Action 20%, Sci-fi 13.2%, Indie 10.1%
Why You'll Like It: It features destructible environments and space-based combat in a sci-fi setting that shares the seed game's industrial aesthetic.
- #29 NEBULOUS: Fleet Command
73% matchVery Positive81% of 3,880 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 4.9 hrsMean: 31.0 hrs≥1hr: 77%
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
Why similar: Multiplayer 35.5%, Tactical 25.4%, Simulation 22.2%, Co-op 13.1%, Singleplayer 3.8%
- #30 Project Wingman
72% matchVery Positive94% of 21,506 reviews2020
Dev: Sector D2
Windows
Median: 4.7 hrsMean: 14.6 hrs≥1hr: 69%
Project Wingman is a flight action game that lets you take the seat of advanced fighter jets and become a true ace. Fight in various missions and gamemodes ranging from intense aerial dogfights to large scale ground assault in an alternate scorched earth setting.
Why similar: Action 24.5%, Sci-fi 23.7%, Simulation 19.5%, Indie 11.5%, First-Person 9.7%
- #31 Hardspace: Shipbreaker
71% matchVery Positive89% of 21,927 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 24.1 hrs≥1hr: 86%
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!
Why similar: Space 42.4%, Sci-fi 27.8%, Simulation 14.4%, First-Person 7.1%, Futuristic 4.4%
- #32 Rodina
73% matchVery Positive93% of 1,329 reviews2014
Dev: Elliptic Games
Windows
Median: 2.8 hrsMean: 6.4 hrs≥1hr: 71%
A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!
Why similar: Space 53.8%, Sci-fi 21.8%, Action 7.3%, Indie 6.8%, First-Person 4.7%
- #33 EVERSPACE™
73% matchMostly Positive78% of 11,424 reviews2017
Dev: ROCKFISH Games
Windows · Mac · Linux
Median: 2.8 hrsMean: 9.9 hrs≥1hr: 75%
EVERSPACE™ combines fast-paced combat with roguelike elements, great visuals and a captivating story. It takes you on a challenging journey through an ever-changing, beautifully crafted universe full of surprises. Shoot, craft and loot your way to victory while the odds are stacked against you.
Why similar: Space 53.4%, Sci-fi 20.2%, Action 13.1%, Indie 6.2%, Shooter 3%
- #34 Wayward Terran Frontier: Zero Falls
74% matchMixed68% of 537 reviews2016
Dev: Reason Generator Inc.
Windows
2d space combat like no other. From the perspective of a single crew member, explore the fully destructible interior of any ship in a massive living world. Engage in space combat with no hitpoints where you know your enemy is dead when you see them fall out of their ship into the cold dark of space.
Why similar: Space 44.9%, Sci-fi 26.8%, Simulation 18.1%, Indie 8%, Singleplayer 2.3%
- #35 Nuclear Option
69% matchOverwhelmingly Positive96% of 8,859 reviews2023
Dev: Shockfront Studios
Windows
Median: 8.8 hrsMean: 25.8 hrs≥1hr: 86%
Fly near-future aircraft with immersive physics across dynamic battlefields, facing land, air, and sea threats. Wage war against AI or rival pilots using an array of advanced weaponry, including tactical and strategic nuclear weapons capable of annihilating anything in your path.
Why similar: Sci-fi 40.2%, Simulation 23.8%, First-Person 18.1%, Action 18%
- #36 Universal Combat CE
75% matchMixed42% of 267 reviews2015
Dev: 3000AD
Windows
Median: 36 minMean: 15.8 hrs≥1hr: 45%
The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.
Why similar: Space 45.1%, Sci-fi 32%, Simulation 17%, Multiplayer 2.1%, Action 1.6%
- #37 Space Reign
68% matchMostly Positive75% of 431 reviews2026
Dev: Propulsive Games
Windows
An indie space-sim and strategy game featuring ship and fleet combat mixed with RTS elements. Complete contracts and Claim sectors for your faction in the near-future, where resource exploiting corporations are in a state of constant conflict over territory control.
Why similar: Space 38.5%, Sci-fi 25%, Action 10.8%, Tactical 10%, First-Person 7.9%
- #38 Halo Infinite
68% matchMixed69% of 180,248 reviews2021
Dev: 343 IndustriesPub: Xbox Game Studios
Windows
Median: 3.0 hrsMean: 29.2 hrs≥1hr: 71%
From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience.
Why similar: FPS 28.1%, Multiplayer 16.7%, Space 16.6%, Sci-fi 14.8%, First-Person 6.6%
- #39 Allspace
71% matchMixed63% of 63 reviews2019
Dev: ShilohGames
Windows · Mac · Linux
100 pilots battle with lasers, plasma, and missiles in Allspace.
Why similar: Space 22.8%, FPS 17.8%, Simulation 16.8%, Action 12.7%, Sci-fi 10.8%
- #40 NS2: Combat
72% matchMixed54% of 299 reviews2014
Dev: Faultline GamesPub: Unknown Worlds Entertainment
Windows
Median: 2.8 hrsMean: 11.4 hrs≥1hr: 80%
NS2: Combat is a powerful twitch-shooter where space marines battle aliens through a competitive mixture of MOBA & FPS playstyles. Are you ready?
Why similar: FPS 31.4%, Multiplayer 20.5%, Action 16.9%, Sci-fi 12.4%, First-Person 7.1%
- #41 Alpha Mike Foxtrot VR - AMF VR
71% matchMixed56% of 91 reviews2018
Dev: SUBLEVEL ONE STUDIOS
Windows
Get ready for the Next Generation in Virtual Reality First Person Shooters! Focusing on fast-paced gameplay and immersive environments, Alpha Mike Foxtrot VR (AMF VR) delivers the goods. Put on your headset and engage in all-out warfare with Bots, Friends (or Enemies) around the globe.
Why similar: FPS 37.5%, Action 19.5%, Simulation 18.2%, Violent 16.1%, Indie 8.7%
- #42 XOL: Space Mech Wars
66% matchVery Positive92% of 77 reviews2025
Dev: Michigames
Windows
Mech FPS game in all directions of space; follow the story and contribute to the fight for your homeland! Survive the space wars as an up-and-coming soldier with the toughest warriors around!
Why similar: Space 35.1%, Sci-fi 21.1%, FPS 16.3%, Action 9.9%, Shooter 4.6%
- #43 BATTLETECH
69% matchVery Positive84% of 32,826 reviews2018
Dev: Harebrained SchemesPub: Paradox Interactive
Windows · Mac · Linux
Median: 4.6 hrsMean: 43.7 hrs≥1hr: 89%
Take command of your own mercenary outfit of 'Mechs and the MechWarriors that pilot them, struggling to stay afloat as you find yourself drawn into a brutal interstellar civil war.
Why similar: Sci-fi 34.8%, Space 23%, Tactical 17.2%, Multiplayer 11.1%, Action 7.6%
- #44 Rising Front
64% matchVery Positive88% of 4,015 reviews2026
Dev: Sandstorm Studios Inc.
Windows · Mac
Median: 1.1 hrsMean: 4.4 hrs≥1hr: 54%
A FPS WW1 & Revolutionary War battle simulator with a focus on Workshop Content, rag-doll physics, intelligent AI, massive battles, procedural AI cover system, real-time building system and FPS combat!
Why similar: FPS 43.7%, Simulation 16.1%, Action 12.1%, First-Person 10.2%, Shooter 7.6%
- #45 X4: Foundations
68% matchMostly Positive80% of 28,557 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.0 hrsMean: 94.7 hrs≥1hr: 80%
Your journey to building a vast space empire begins behind the controls of a single ship. Explore, trade, fight, and build as you rise to command fleets, stations, and entire economies in a living, fully simulated universe that reacts to every decision.
Why similar: Space 39.2%, Sci-fi 25.4%, Simulation 13.9%, First-Person 10.1%, Action 9.3%
- #46 Starpoint Gemini Warlords
70% matchMostly Positive73% of 3,581 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 11.0 hrs≥1hr: 87%
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!
Why similar: Space 48.9%, Sci-fi 27.9%, Simulation 15.2%, Indie 5.6%, Singleplayer 2.3%
- #47 Aliens: Colonial Marines Collection
70% matchMixed62% of 12,007 reviews2012
Dev: Gearbox SoftwarePub: SEGA
Windows
Median: 5.3 hrsMean: 15.4 hrs≥1hr: 77%
You & your friends are the deadliest killers in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.
Why similar: FPS 31.4%, Space 15.8%, Sci-fi 15.7%, Multiplayer 11.6%, Action 11.1%
- #48 Cosmoteer: Starship Architect & Commander
65% matchVery Positive94% of 12,599 reviews2022
Dev: Walternate Realities
Windows
Median: 19.4 hrsMean: 41.0 hrs≥1hr: 92%
Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!
Why similar: Space 32.9%, Sci-fi 31.9%, Multiplayer 16.7%, Simulation 9.8%, Indie 5.8%
- #49 In The Black
64% matchMixed69% of 80 reviews2026
Dev: Impeller Studios
Windows
Nuclear-powered space combat in the 23rd century! In The Black ® is an intense, realistic space combat simulator with a serious respect for science. It is laser focused on the pilot experience and features single- and online multiplayer game modes, plus robust ship customization options.
Why similar: Space 35.1%, Sci-fi 25%, Multiplayer 14.6%, First-Person 10.9%, Shooter 7.6%
- #50 Reassembly
67% matchVery Positive94% of 4,070 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.0 hrsMean: 26.1 hrs≥1hr: 84%
A spaceship building and universe-exploration game. Collect resources, expand and grow your fleet, and conquer your personal galaxy. Stellar ambience by Peaks.
Why similar: Space 61.1%, Sci-fi 14.4%, Action 11.2%, Indie 6.6%, Shooter 3%
- #51 Stellar Warfare
66% matchVery Positive83% of 417 reviews2021
Dev: Tense Games
Windows
Median: 42 minMean: 2.8 hrs≥1hr: 45%
Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!
Why similar: Space 32.6%, Sci-fi 22%, Multiplayer 18.1%, Simulation 12.7%, Co-op 6.7%