- #1 Mech Mechanic Simulator: Prologue
97% matchMostly Positive77% of 146 reviews2021
Dev: PolyslashPub: Valkyrie Initiative
Windows
Median: 1.2 hrsMean: 3.8 hrs≥1hr: 62%
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!
Why similar: Mechs 25.3% ★, Robots 16.3%, Space Sim 14.9%, Immersive Sim 14.5%, Simulation 13.8%
- #2 DOG LIVES: Space Pirates War
96% matchNo user reviews2026
Dev: Space Corgi Games
Windows
The year is 2083. As the galactic space pirate crisis reaches its breaking point, you—a "dog of the military"—must pilot a humanoid Powered Metal Frame (MF), subdue rival captains, unite them under your banner, and emerge victorious in the ultimate Pirate War!
Why similar: Space Sim 29.1%, Robots 17.7%, Mechs 14.7% ★, RPG 10.6%, Immersive Sim 10.3%
- #3 Cow Project 1986
96% matchVery Positive93% of 55 reviews2026
Dev: JCdaisuki
Windows · Mac · Linux
A game about an alien that has to abduct things to pay rent!
Why similar: Space Sim 36.9%, Aliens 22.8%, Simulation 14.8%, Casual 10.2%, 3D 5.7%
- #4 Orbit Engineer
95% matchNo user reviews
Dev: Albion Games
Windows
Orbit Engineer – Build, grow, and survive in your own space station. Manage crew morale, supplies, and research while facing unpredictable space events and system failures. Every decision matters as you expand and fight to keep your station alive in space.
Why similar: Space Sim 31.7%, City Builder 30.1%, Simulation 14.1%, Immersive Sim 10.2%, Third Person 5.6%
- #5 Construction Simulator 3 - Pocket Edition
94% matchMixed48% of 21 reviews2025
Dev: weltenbauer. Software Entwicklung GmbHPub: astragon Entertainment
Windows
In Construction Simulator 3, explore a European town with vehicles from Caterpillar, Liebherr, CASE, MAN, Bell, BOMAG, MEILLER Kipper and more. Take on contracts, build roads and houses, expand your fleet, and grow your company!
Why similar: City Builder 42%, Simulation 18.2%, Immersive Sim 17.1%, Exploration 9%, Third Person 7.4%
- #6 Kairobotica
94% matchVery Positive82% of 67 reviews2023
Dev: Kairosoft Co.,Ltd
Windows
Vanquish villains and lead the Kairobot Corps to glory in this spacefaring saga!
Why similar: Space Sim 32.2%, City Builder 23.9%, RPG 11.4%, Mechs 10.9% ★, Simulation 9.9%
- #7 Phantom of Orion
93% matchNo user reviews2027
Dev: Smiling Bob Games LLCPub: None
Windows
A WW2 submarine sim in space. Alone in an unfinished stealth prototype, run cold and dark through alien convoy lanes, strike from cloak, then vanish before the swarm sweeps back. The cloak that hides you also blinds you.
Why similar: Space Sim 35.6%, RPG 15.3%, Simulation 12.8%, Immersive Sim 11.7%, Aliens 10.7%
- #8 Only Up Spaceman
92% match6 user reviews83% of 6 reviews2024
Dev: Limey Studio
Windows
Conquer the heights of space by navigating treacherous landscapes. Battle gravity and test your skill to reach the top. Get ready for the climb of your life.
Why similar: Space Sim 40.8%, 3D Platformer 18.5%, Platformer 13.7%, Simulation 7.9%, Third Person 6.4%
- #9 Deep Space Remnant
91% matchMostly Positive79% of 14 reviews2026
Dev: Atlas
Windows
Deep Space Remnant is a space survival base-building simulator: build your station, gather resources with ships, research technology, and strengthen shields to survive escalating cosmic radiation.
Why similar: Space Sim 41.5%, City Builder 37%, Simulation 16.4%, 3D 4.8%, Singleplayer 0.2%
- #10 Infinite sky
91% matchMostly Negative27% of 11 reviews2021
Dev: Blue panda Games
Windows
This is an escape flight game. The pace of the game is very tight. The player's goal is to survive as much as possible.
Why similar: Space Sim 53.5%, 3D Platformer 22.2%, Casual 12.1%, Third Person 11.9%, Singleplayer 0.2%
- #11 MOSS Becoming Human
90% matchNo user reviews
Dev: MOSS AI
Windows
MOSS Becoming Human is an AI science game where players develop and deploy AI agents to build a Martian civilization. Customize, evolve, and test AI in various modes, shaping diverse outcomes. Agents can also interact with the real world, including social platforms like X.
Why similar: Space Sim 42.9%, 3D Platformer 16%, Simulation 15.7%, Immersive Sim 10.9%, Exploration 5.7%
- #12 Heaven's Ladder
89% match9 user reviews80% of 9 reviews2024
Dev: AstrumArc LLC
Windows
Embark on a challenging platforming adventure where precision, patience, and skill are key to navigating breathtaking landscapes and reaching new heights.
Why similar: 3D Platformer 22.1%, Platformer 17.9%, Immersive Sim 14.4%, Robots 11.6%, Casual 11.4%
- #13 遗落幻境
88% matchNo user reviews
Dev: 坂翼工作室
Windows
Oblivion is a first-person 3D survive-building game with a super-core gameplay experience and rich content that brings endless possibilities!
Why similar: Space Sim 33.8%, City Builder 28.4%, 3D Platformer 14.9%, Aliens 10.6%, Exploration 6.3%
- #14 Craft Lands
89% matchNo user reviews2024
Dev: fk.system
Windows · Mac
Let's develop the village! Craft Lands is a development simulation game where you plant trees in a vast empty space and develop a village. Defend your village from enemies and use resources to build houses and increase your population. What kind of village you create is entirely up to you.
Why similar: City Builder 36.4%, 3D Platformer 17.8%, Immersive Sim 11.1%, Simulation 10.8%, Casual 6.3%
- #15 Join The Space Exploration Fleet!
87% matchNo user reviews
Dev: Phuntasy Productions
Windows
This is a single player game. You play a rebooted android in a broken shuttle. You need to fly the ship, keep the energy systems functional, mine some fuel from asteroids and feed the FTL drive with energy.
Why similar: Space Sim 46.3%, Immersive Sim 22.6%, Simulation 11.4%, Exploration 9.8%, Casual 4.2%
- #16 Epic Astro Story
86% matchVery Positive89% of 64 reviews2022
Dev: Kairosoft Co.,Ltd
Windows
Battle baddies and foster interplanetary diplomacy in an epic space colony sim!
Why similar: Space Sim 34.8%, City Builder 27%, RPG 12.2%, Simulation 11.4%, Casual 6.1%
- #17 Barrel Baller
86% match1 user reviews100% of 1 reviews2025
Dev: Daefiant Armory GS
Windows
Barrel baller is a 3D platformer where you take control of v806 autonomous hauler unit across different planets. Your goal is to deliver cargo to hard accesible locations.
Why similar: Mechs 33.2% ★, 3D Platformer 26%, Robots 11.4%, Third Person 7.8%, Casual 6.8%
- #18 Hexfactory
85% matchMixed54% of 13 reviews2025
Dev: Aquila Industrial
Windows
Build cities and factories in an infinite Hex World. Explore more tiles. Balance your city's production and consumption, attract more citizens of different classes, research new technologies and build more factories and cities.
Why similar: Space Sim 33.8%, City Builder 28.9%, 3D Platformer 14.7%, Simulation 9%, Exploration 6.5%
- #19 Anomaly Operation
84% match3 user reviews100% of 3 reviews2026
Dev: forPub: forEverGames
Windows
Anomaly Operation is a sci-fi horror observation game. Trapped in the security room, you must monitor a derelict ship via CCTV. Report anomalies and avoid lethal threats. Survive until 03:00 AM.
Why similar: Space Sim 42.8%, Simulation 16.7%, Immersive Sim 16.1%, Aliens 12.4%, Cyberpunk 5.4%
- #20 Rax Genesis
84% match1 user reviews0% of 1 reviews2024
Dev: Raxverse
Windows
A visual album where sound shapes reality. Twenty-four movements paint abstract landscapes for you to wander, whether by foot or drifting on clouds. Your path, your pace, your interpretation.
Why similar: 3D Platformer 26.2%, Immersive Sim 19.8%, Platformer 15.6%, RPG 14.4%, Simulation 10.5%
- #21 Smugglers of Cygnus: Alpha System
83% matchNo user reviews
Dev: Longplay Games
Linux
Smugglers of Cygnus places you in command of a ship in the service of that noblest profession: Commerce. Travel the galaxy. Deliver goods. Deliver goods of questionable legality for higher rates. Fend off pirates, or perhaps become one yourself...The Galaxy is yours. Come and take it.
Why similar: Space Sim 33.5%, Aliens 13.6%, Immersive Sim 12.7%, Robots 9.6%, Simulation 8.1%
- #22 Jump Zombie
82% match1 user reviews100% of 1 reviews2026
Dev: MMUTANGM
Windows
Jump Zombie: auto-jump upward platformer. No sprint. Master timing, distance, landing direction. Ascend through Chinese, farm, nature, dungeon levels. A rhythmic climb to the top.
Why similar: 3D Platformer 28.9%, Platformer 17.2%, RPG 15%, Casual 13.8%, Third Person 10%
- #23 REAL MOON
81% matchMixed68% of 116 reviews2025
Dev: historia Inc.
Windows
Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.
Why similar: Space Sim 54.9%, Simulation 19.8%, Third Person 12.3%, Exploration 10.4%, Open World 2.2%
- #24 Rover Simulator
82% match4 user reviews100% of 4 reviews2021
Dev: Matt SchostekPub: Demigod Studios
Windows
Rover Simulator allows you to experience the cosmos through the lens of a Rover. Explore celestial bodies across the galaxy in the pursuit of evidence pointing to signs of life as well as gaining a broader understanding of the universe to pave the way for colonization beyond the Earth.
Why similar: Space Sim 46.3%, Simulation 16.3%, Immersive Sim 15.3%, Exploration 8.9%, Third Person 7.8%
- #25 Ship Regulus
81% matchMixed58% of 12 reviews2024
Dev: cuidong
Windows
In the first year of the ephemeris, the warp engine was invented. Due to the initial engine being too large, it was installed on the space city Regulus. During engine testing, the jump signal attracted an alien fleet, and the Ship Regulus embarked on a flight path.
Why similar: Space Sim 34.1%, City Builder 30.2%, RPG 10.8%, Simulation 9.6%, Third Person 5.6%
- #26 Serenity
80% matchNo user reviews2026
Dev: Matt Sephton
Windows · Mac
A zen gliding and exploration game with procedurally generated music
Why similar: Space Sim 35.7%, 3D Platformer 18.6%, Immersive Sim 15.9%, Exploration 8.2%, Third Person 7.7%
- #27 Titan: The Ascension
79% matchNo user reviews2027
Dev: Wildercroft Studio
Windows
Titan: The Ascension is a colony management strategy game on Saturn’s moon Titan. Build and expand an off-world industrial colony, extract ice to produce water for Earth, trade resources, and defend against ancient automated systems that react to technology growth. Will you prevail?
Why similar: Space Sim 28.7%, City Builder 24.6%, Robots 11.7%, Simulation 9.6%, Aliens 8.8%
- #28 Build In Space
78% match1 user reviews100% of 1 reviews2026
Dev: JCredezPub: CrimeArt
Windows
Build In Space is a relaxing tycoon game where you can grow crops, build your base, and raise animals.
Why similar: City Builder 28.5%, Space Sim 24.7%, Immersive Sim 14.4%, Robots 13.9%, Exploration 7.3%
- #29 A.I. Rising
79% matchNo user reviews
Dev: GameFunsPub: OKJOY
Windows
A.I.Rising is a game about base building, attacking and defending and the life of NPCs in the digital world with the aim of creating a digital city.
Why similar: Space Sim 36.5%, City Builder 32.1%, Robots 11.4%, Simulation 10.8%, Cyberpunk 3.9%
- #30 Star Legacy
78% matchNo user reviews
Dev: Star Legacy
Windows
Venture into the depths of space and leave your legacy among the stars. In Star Legacy, explore galaxies, upgrade your ship, and survive on unknown planets.
Why similar: Space Sim 49.3%, Immersive Sim 14.6%, Casual 10%, Aliens 9.1%, Exploration 8.4%
- #31 Palette Cleanser
76% matchVery Positive96% of 50 reviews2025
Dev: Team 1Pub: Breda University of Applied Sciences
Windows
Jump, dash and slide through a futuristic garden in Palette Cleanser, cute 3D platformer focused on smooth movement and an optimistic vibe! Control a tiny robot trying to restore the color palette of its garden. Capture the alien invaders to activate paint sprinklers and make the garden alive again.
Why similar: 3D Platformer 20.2%, Robots 20.2%, Aliens 20%, Platformer 14%, Third Person 8%
- #32 Final Frontier Story
75% matchVery Positive83% of 83 reviews2026
Dev: Kairosoft Co.,Ltd
Windows
Dodge lasers and explore! Planetary Development Simulation
Why similar: Space Sim 38.9%, City Builder 30.4%, Simulation 16.8%, Aliens 8.3%, Casual 2.8%
- #33 Cosmic colonists
77% matchNo user reviews
Dev: Chewy bytes studio
Windows
Build a colony on an alien planet. Supply settlers, defend against meteors, upgrade your base, develop your economy, and fight for survival.
Why similar: Space Sim 41.5%, City Builder 36.7%, Simulation 17.7%, 3D 4%, Singleplayer 0.1%
- #34 Bip and Bop
74% matchMostly Positive79% of 103 reviews2025
Dev: Quadberos
Windows
Help, step on, or sabotage your friend! In this 2-player only puzzle platformer, perfect chemistry is the only way through. Think your friendship can handle it?
Why similar: 3D Platformer 27.2%, Robots 23.3%, Platformer 22.1%, Casual 13.9%, Third Person 13.5%
- #35 Star Squadron
76% matchNo user reviews2027
Dev: All Seeing Eye Games
Windows
Star Squadron is a narrative-driven space combat simulator built for maximum immersion. Command your wing with freeform voice recognition and experience a dynamic campaign that calls you by name using our proprietary Voice Mimic System. Don't just play the game—live it.
Why similar: Space Sim 42.7%, Aliens 18.9%, Immersive Sim 16.1%, Simulation 8.4%, Artificial Intelligence 6.6%
- #36 Station-14
75% matchNo user reviews2026
Dev: CosmicDev
Windows · Mac · Linux
Pilot a fragile drone through the depths of space and investigate a derelict station in this short horror game.
Why similar: Space Sim 48.2%, Simulation 17.5%, Immersive Sim 15.7%, Aliens 12%, 3D 3.9%
- #37 Kairos: In Step with Time
73% match1 user reviews100% of 1 reviews2026
Dev: Jiakang Lin
Windows · Mac
Kairos: In Step with Time is an experimental interactive experience about time, cosmic order, and human response. Align the time ring, answer six moments of change, and let your final hexagram emerge from the rhythm of the universe.
Why similar: Space Sim 45.4%, Simulation 17.7%, 3D Platformer 16.2%, Casual 11.1%, Exploration 6%
- #38 Rheksetor
77% matchNo user reviews2018
Dev: Trokardia
Windows
Explore and unravel the mysteries of Rheksetor!
Why similar: Space Sim 40.6%, Immersive Sim 17.3%, Third Person 9.3%, Exploration 9%, Simulation 8.9%
- #39 Star Freight
72% matchPositive100% of 20 reviews2025
Dev: Error 300
Windows · Mac · Linux
Can you deliver the goods? Board your spaceship and go!
Why similar: Space Sim 46.4%, Simulation 20%, Aliens 16.8%, Casual 12%, Sci-fi 4.4%
- #40 Super Starship
72% matchPositive91% of 11 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 56.2%, Simulation 21.1%, Exploration 10.3%, 3D 6%, Sci-fi 4.6%
- #41 VR-太阳系
73% matchMostly Positive77% of 13 reviews2023
Dev: 001
Windows
Welcome to this exciting gaming world, where you will transform into a true space explorer and embark on a magnificent journey of exploring the wonders of the universe!
Why similar: Space Sim 51.9%, Immersive Sim 19.4%, Simulation 13%, Casual 11.4%, 3D 4.2%
- #42 Battlecruiser Generations
74% matchPositive83% of 18 reviews2021
Dev: 3000AD
Windows
In celebration of the 25 yr anniversary of the first release, this compendium contains all 4 games in the Battlecruiser 3000AD series which was first released in 1996.
Why similar: Space Sim 43%, Aliens 13%, Immersive Sim 12.5%, Simulation 11.2%, Exploration 8.3%
- #43 Alone Or Together
73% match3 user reviews100% of 3 reviews2024
Dev: Lee Seung MinPub: TY games
Windows
Two people will work together to clear the stage.
Why similar: 3D Platformer 33%, Platformer 20.7%, Aliens 18.5%, Simulation 11.6%, Casual 9.4%
- #44 Unit 097
71% match1 user reviews100% of 1 reviews2026
Dev: Sip
Windows · Linux
Explore the galaxy through the eyes of an android pilot. Enjoy a mix of relaxing planetary scanning and arcade-style combat as you upgrade your fleet. A slow-paced space sim for those who love the hum of an engine and the glow of distant suns.
Why similar: Space Sim 66.3%, Casual 15%, Exploration 12%, 3D 6.4%, Singleplayer 0.3%
- #45 RoboDeal Simulator Prologue
70% match8 user reviews88% of 8 reviews2026
Dev: Dual Cluster Studios
Windows
Design, craft, and trade robots on the frozen world of Xylaris-9. Serve factions, upgrade your facility, and shape your robotic legacy in Robodeal Simulator.
Why similar: Space Sim 40.8%, Simulation 14.8%, Immersive Sim 12.5%, Casual 9.2%, Robots 9%
- #46 Kessler Syndrome
71% matchMixed44% of 41 reviews2023
Dev: Sorry Chair Productions
Windows
Alone in orbit with a corpse and no way to reach Earth, play as an astronaut who must keep a defunct space station aloft. Maintain the onboard systems, deal with the constant threat of space junk, and navigate the dark halls in zero-gravity. Day by day more systems fail, and the void draws closer.
Why similar: Space Sim 49.9%, Immersive Sim 19.2%, Simulation 13.6%, Casual 8%, 3D 5.8%
- #47 Boötes
70% match2 user reviews50% of 2 reviews2024
Dev: HEAD GMZ
Windows
Boötes is a Space Sim where you get to jump on astroids. Collect Crystals, Unlock New Abilities, Find Secrets to Unlock New Suits, and Much More. You are all alone in The Boötes Void where you find mysterious crystals that can help fuel your space shuttle so you can visit the Cold Dark.
Why similar: Space Sim 59.8%, Simulation 13.7%, Immersive Sim 13%, Exploration 9.7%, 3D 3.5%
- #48 Patched Conic
70% matchNo user reviews
Dev: Perilune Games
Windows · Mac · Linux
Fly real astrodynamics from an Apollo-era DSKY. Plan Lambert transfers, mine asteroids, build a fleet, and survive a 38-body solar system where every trajectory is solved from Kepler's equation. No autopilot, no cheating.
Why similar: Space Sim 49.7%, Simulation 18%, Immersive Sim 17.5%, Exploration 9.2%, Sci-fi 4.2%
- #49 G-ASTRO
69% match6 user reviews100% of 6 reviews2025
Dev: ConnorRMCG
Windows
Play as a hyperintelligent, intergalactic, space Snail on a mission across the universe. Discover wildlife and plantlife to determine whether this world is habitable for snail-kind.
Why similar: Space Sim 41.7%, 3D Platformer 18.8%, Platformer 15.5%, Aliens 10.8%, Third Person 6.4%
- #50 Construction Simulator 4 - Pocket Edition
69% matchNegative17% of 35 reviews2025
Dev: astragon DevelopmentPub: astragon Entertainment
Windows
Experience Construction Simulator 4 across three beautiful regions with unique campaigns and challenges. Over 100 missions and 80 detailed vehicles and machinery deliver a varied gameplay experience for your growing construction company.
Why similar: City Builder 43.3%, Simulation 18.4%, Immersive Sim 16.7%, Exploration 8.8%, Third Person 7.4%
- #51 Opportunity
69% matchNo user reviews
Dev: DIMANCHE CORP.
Windows
Opportunity is an atmospheric narrative game where you become the famous NASA rover and brave the many obstacles littering the desolate red planet in order to finally complete its mission.
Why similar: Space Sim 47.6%, Simulation 17.7%, Immersive Sim 16.4%, Exploration 8.9%, 3D 4.3%
- #52 Echo
68% match2 user reviews50% of 2 reviews2026
Dev: Mistway
Windows
Enter an infinite‑loop laboratory and retrieve uncontaminated extraterrestrial samples, and ultimately achieve your mission objectives.
Why similar: Space Sim 36.1%, Immersive Sim 19.7%, Aliens 12.8%, Simulation 10%, Exploration 8.9%
- #53 Delos: Space Traffic Control
67% matchVery Positive80% of 56 reviews2025
Dev: hv
Windows
In Delos, you are the space traffic controller managing the flow of ships at a bustling space station. Direct docking, allocate resources, and prevent collisions in a real-time strategy setting. Balance efficiency and safety to maintain order in the interstellar hub.
Why similar: Space Sim 58.7%, Simulation 15.3%, Immersive Sim 11.8%, Sci-fi 7.1%, 3D 6.7%
- #54 Rogue System
68% matchMixed67% of 275 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 75.3%, Simulation 24.7%
- #55 Lunaris
68% matchNo user reviews
Dev: Project Lunaris
Windows
Embark on humanity’s greatest journey to the Moon with Lunaris. Take on the role of an astronaut navigating NASA’s Apollo missions, from the roaring launch of Saturn V to stepping on the lunar surface. Experience the triumphs, challenges, and legacy of space exploration in this immersive simulator.
Why similar: Space Sim 49%, Simulation 20.7%, Immersive Sim 18.3%, Casual 7.1%, 3D 4.8%
- #56 Void Ledger
67% matchNo user reviews2027
Dev: Hidden Universe Games
Windows
You find yourself in a distant galaxy full of merchants, diplomats, bandits and powerful factions. Explore unknown galaxies, trade, fight pirates or become one. Uncover mysteries and shape the universe!
Why similar: Space Sim 58.2%, RPG 13.9%, Exploration 12.4%, Simulation 8.2%, Sci-fi 3.8%
- #57 Rebel Galaxy Outlaw
67% matchMixed63% of 1,200 reviews2020
Dev: Double Damage Games
Windows
Median: 42 minMean: 9.0 hrs≥1hr: 43%
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 49.3%, Robots 11.4%, RPG 10.5%, Simulation 8.9%, Third Person 7%
- #58 Ranger: Far From Home
66% match1 user reviews100% of 1 reviews2026
Dev: jiexai99i
Windows
Ranger: Far From Home is a single-player game where your goal is to survive and reach the evacuation point while overcoming various challenges you encounter along the way.
Why similar: Space Sim 57.5%, 3D Platformer 24.6%, Third Person 11.4%, 3D 6.2%, Singleplayer 0.2%
- #59 DarkHelm
67% matchNo user reviews
Dev: Kai-Uwe Rathjen
Windows · Mac · Linux
A co-op starship bridge sim for 6–25 players. Man a station — helm, weapons, sensors, engineering, comms or command — and no one can fly the ship alone. Communicate, coordinate, and survive together.
Why similar: Space Sim 42.4%, Simulation 15.6%, Immersive Sim 13.4%, RPG 13.2%, Exploration 7.3%