- #1 Space Engineers
97% matchVery Positive89% of 133,238 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 95.7 hrs≥1hr: 87%
Space Engineers is a sandbox engineering game where you design and build ships, stations, and planetary bases in a fully destructible environment. Explore planets and space, mine resources, survive hazards, and engage in combat alone or with friends in Creative or Survival modes.
Why similar: Space 32%, Multiplayer 14%, Simulation 10.7%, Open World 10.2%, Co-op 10.1%
Why You'll Like It: Offers deep, physics-based building and space exploration that mirrors the technical focus of Moonbase Alpha.
- #2 Kerbal Space Program
96% matchOverwhelmingly Positive95% of 133,317 reviews2015
Dev: SquadPub: Private Division
Windows · Mac · Linux
Median: 5.3 hrsMean: 65.2 hrs≥1hr: 84%
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.
Why similar: Space 56.2%, Simulation 16%, Sandbox 12.7%, Open World 5.8%, Funny 4.1%
Why You'll Like It: Provides a realistic and challenging approach to space flight and lunar exploration that aligns with the NASA-inspired theme.
- #3 PULSAR: Lost Colony
96% matchVery Positive90% of 5,694 reviews2021
Dev: Leafy Games
Windows · Mac · Linux
Median: 7.5 hrsMean: 16.8 hrs≥1hr: 88%
The co-op open-world space sim where everyone has a role! Pilot the ship. Reroute power. Launch nukes. Explore alien planets. Research new talents. Work together to find the Lost Colony! ...or just deliver some biscuits
Why similar: Space 32.9%, Multiplayer 14%, Online Co-Op 13.8%, Simulation 11.6%, Open World 11.3%
Why You'll Like It: Focuses on multi-crew ship management where players must work together to survive, much like a lunar outpost team.
- #4 Barotrauma
94% matchVery Positive94% of 84,235 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 8.9 hrsMean: 54.3 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 40.2%, Co-op 32%, Simulation 18.9%, Strategy 8.1%, Singleplayer 0.8%
Why You'll Like It: Features chaotic, high-stakes cooperative crew management that captures the same frantic energy as a failing lunar base.
- #5 Planetbase
95% matchMostly Positive80% of 10,262 reviews2015
Dev: Madruga Works
Windows · Mac
Median: 8.2 hrsMean: 26.2 hrs≥1hr: 90%
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
Why similar: Space 64.6%, Simulation 11.9%, Strategy 10.6%, Open World 5.8%, Sandbox 5.7%
Why You'll Like It: Focuses on the logistical challenges of maintaining a self-sufficient colony on a hostile alien world.
- #6 ASTRONEER
94% matchVery Positive92% of 136,711 reviews2019
Dev: System Era Softworks
Windows
Median: 11.7 hrsMean: 44.1 hrs≥1hr: 87%
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.
Why similar: Space 40.4%, Multiplayer 18.3%, Open World 13.2%, Co-op 9.6%, Sandbox 8.6%
Why You'll Like It: Provides a more accessible, sandbox-focused approach to space exploration and base construction.
- #7 Deep Rock Galactic
92% matchOverwhelmingly Positive97% of 372,881 reviews2020
Dev: Ghost Ship GamesPub: Coffee Stain Publishing
Windows
Median: 14.2 hrsMean: 75.7 hrs≥1hr: 94%
Deep Rock Galactic is a 1-4 player co-op FPS featuring dwarven space miners, procedurally-generated destructible environments, and endless hordes of alien monsters. Explore cave systems, mine for minerals, and work together to survive!
Why similar: Space 60.5%, Co-op 33.1%, First-Person 6.3%
Why You'll Like It: Combines space-themed cooperative missions with a strong sense of humor and camaraderie among players.
- #8 Stationeers
93% matchVery Positive88% of 8,897 reviews2017
Dev: RocketWerkz
Windows
Median: 9.8 hrsMean: 81.9 hrs≥1hr: 85%
Stationeers puts you in control of the construction and management of a space station to run by yourself or online with your friends. Complex atmospheric, electrical, manufacturing, agriculture, and gravitational systems require your thought and management at all times!
Why similar: Space 49.2%, Multiplayer 21.1%, Sandbox 14.9%, Co-op 14.8%
Why You'll Like It: A complex, technical simulation of base-building and atmospheric management that appeals to the engineering side of Moonbase Alpha.
- #9 Void Crew
91% matchVery Positive87% of 8,134 reviews2024
Dev: Hutlihut GamesPub: Focus Entertainment
Windows
Median: 9.0 hrsMean: 16.4 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 36.4%, Multiplayer 22.2%, Online Co-Op 17.7%, Co-op 16.6%, Adventure 4.1%
Why You'll Like It: A cooperative space-action game that emphasizes teamwork and communication to keep a vessel operational in hostile environments.
- #10 Unfortunate Spacemen
91% matchVery Positive86% of 7,542 reviews2020
Dev: Geoff 'Zag' KeenePub: Deep Field Games
Windows
Median: 1.7 hrsMean: 15.7 hrs≥1hr: 64%
An online multiplayer game about shapeshifting deception and betrayal! As a hapless, brave spaceman employed by The Company you'll work diligently to defend and be rescued from failing outposts, but not everyone around you is who they claim to be...
Why similar: Space 31%, Online Co-Op 18.1%, Multiplayer 17%, Co-op 12.1%, Funny 9.1%
Why You'll Like It: Captures the social, multiplayer-focused aspect of space survival with a heavy emphasis on proximity chat and deception.
- #11 Occupy Mars: The Game
89% matchMostly Positive70% of 3,012 reviews2026
Dev: ▲ Pyramid Games
Windows
Median: 4.2 hrsMean: 31.4 hrs≥1hr: 77%
Survive and colonize Mars in a highly technical, open-world sandbox game. Build and upgrade your base, discover new regions, conduct mining operations, retrieve water, generate oxygen, grow crops, and fix broken parts.
Why similar: Space 32.8%, Online Co-Op 16.8%, Open World 11.6%, Simulation 11.1%, Sandbox 10.4%
Why You'll Like It: Focuses specifically on the technical and survival challenges of colonizing Mars, mirroring the lunar mission theme.
- #12 Elite Dangerous
89% matchMostly Positive77% of 105,113 reviews2015
Dev: Frontier Developments
Windows
Median: 18.4 hrsMean: 146.5 hrs≥1hr: 89%
Take control of your own starship and blaze your trail in an ever-changing galaxy. Master the arts of combat, mining and trade or venture out into the unknown across a 1:1 scale universe.
Why similar: Space 42.5%, Open World 12.1%, Multiplayer 10.2%, Simulation 9.3%, Massively Multiplayer 8.3%
Why You'll Like It: Provides a massive, realistic simulation of space travel and commerce for those who enjoy the scale of space exploration.
- #13 Take On Mars
90% matchMixed55% of 2,023 reviews2017
Dev: Bohemia Interactive
Windows
Median: 3.0 hrsMean: 10.5 hrs≥1hr: 87%
Take On Mars places you right in the middle of mankind’s most exciting undertaking. Start out in the seat of a rover operator, finish as the first human to have ever set foot on the Red Planet.
Why similar: Space 47.3%, Simulation 18.6%, Multiplayer 11.7%, Sandbox 7%, Co-op 5%
Why You'll Like It: A simulation-heavy title that focuses on the scientific and exploratory aspects of Martian colonization.
- #14 Starbound
88% matchVery Positive90% of 122,901 reviews2016
Dev: Chucklefish
Windows · Mac · Linux
Median: 17.2 hrsMean: 64.1 hrs≥1hr: 91%
You’ve fled your home, only to find yourself lost in space with a damaged ship. Your only option is to beam down to the planet below, repair your ship and set off to explore the universe...
Why similar: Space 33.7%, Online Co-Op 17.4%, Sandbox 14.6%, Multiplayer 13.4%, Open World 9.6%
Why You'll Like It: A 2D sandbox that captures the spirit of space adventure and base-building in a multiplayer environment.
- #15 Satisfactory
85% matchOverwhelmingly Positive97% of 265,414 reviews2024
Dev: Coffee Stain StudiosPub: Coffee Stain Publishing
Windows
Median: 31.8 hrsMean: 108.4 hrs≥1hr: 94%
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
Why similar: Multiplayer 27.4%, Open World 21.1%, Co-op 18%, Sandbox 14.5%, Simulation 8.8%
Why You'll Like It: Focuses on the automation and infrastructure building aspects that are central to maintaining a functional base.
- #16 Hardspace: Shipbreaker
86% matchVery Positive89% of 21,702 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 23.9 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 56.3%, Simulation 17%, Sandbox 11.3%, Strategy 4.7%, Open World 4.1%
Why You'll Like It: Offers a satisfying, physics-driven simulation of working in space that feels grounded and industrial.
- #17 Empyrion - Galactic Survival
87% matchMostly Positive79% of 34,087 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.7 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 35.5%, Simulation 13.3%, Multiplayer 13%, Co-op 12.5%, Open World 11%
Why You'll Like It: Allows for extensive base building and exploration across different planets with a focus on survival mechanics.
- #18 ICARUS
84% matchMostly Positive74% of 62,078 reviews2021
Dev: RocketWerkz
Windows
Median: 10.0 hrsMean: 44.6 hrs≥1hr: 87%
ICARUS is a solo or multiplayer PvE survival game. Explore a savage wilderness in the aftermath of terraforming gone wrong. Complete narrative quests as either Open World operations or Individual Missions. Explore, build, craft and hunt while seeking your fortune and prospecting for exotic matter.
Why similar: Space 22.4%, Online Co-Op 20.7%, Multiplayer 18.3%, Open World 10.7%, Co-op 9.4%
Why You'll Like It: A session-based survival game that requires players to manage resources and complete objectives under time pressure.
- #19 Star Trek Online
84% matchMostly Positive79% of 20,893 reviews2012
Dev: Cryptic StudiosPub: Arc Games
Windows
Median: 6.8 hrsMean: 132.7 hrs≥1hr: 84%
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.
Why similar: Space 47.5%, Massively Multiplayer 14.9%, Multiplayer 11.1%, Open World 9.4%, Online Co-Op 6.7%
Why You'll Like It: Offers a massive multiplayer experience focused on space combat and crew management within a sci-fi setting.
- #20 Sven Co-op
82% matchVery Positive94% of 32,117 reviews2016
Dev: Sven Co-op team
Windows · Linux
Median: 2.2 hrsMean: 24.3 hrs≥1hr: 69%
Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.
Why similar: Online Co-Op 38.1%, Co-op 21.9%, Multiplayer 18.6%, Third Person 10.7%, First-Person 5.9%
Why You'll Like It: A classic cooperative shooter that highlights the fun of working together in chaotic, player-driven scenarios.
- #21 Kerbal Space Program 2
81% matchMostly Negative27% of 31,135 reviews2023
Dev: Intercept GamesPub: Private Division
Windows
Median: 7.7 hrsMean: 19.1 hrs≥1hr: 86%
Kerbal Space Program 2 is the sequel to the acclaimed space-flight simulation game Kerbal Space Program. Enter the next generation of space adventure with exciting new parts, stunning visuals, fully revamped UI and Map View, and rich new environments to explore.
Why similar: Space 40.1%, Sandbox 11.7%, Simulation 11.2%, Open World 10.4%, Funny 9.4%
Why You'll Like It: Expands on the original's physics-based space exploration with improved visuals and building tools.
- #22 Among Us
79% matchVery Positive92% of 725,594 reviews2018
Dev: Innersloth
Windows
Median: 12.0 hrsMean: 30.6 hrs≥1hr: 93%
An online and local party game of teamwork and betrayal for 4-15 players...in space!
Why similar: Space 36.5%, Multiplayer 25.4%, Online Co-Op 22%, Funny 8.4%, Co-op 7.8%
Why You'll Like It: A social deduction game set in space that relies heavily on player communication and chaotic interaction.
- #23 REAL MOON
78% 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 46.2%, Simulation 28.7%, Open World 12.3%, Third Person 8.3%, Adventure 3.5%
- #24 Spacebase DF-9
83% matchOverwhelmingly Negative18% of 4,324 reviews2014
Dev: Double Fine Productions
Windows · Mac · Linux
Median: 3.2 hrsMean: 4.9 hrs≥1hr: 90%
In Spacebase DF-9, you'll build a home among the stars for a motley population of humans and aliens as they go about their daily lives. Mine asteroids, discover derelicts, and deal with the tribulations of galactic resettlement in Earth's distant future.
Why similar: Space 57.2%, Simulation 21.2%, Sandbox 10.8%, Strategy 8.3%, Comedy 2%
Why You'll Like It: A colony simulation game that tasks players with managing a space station and its inhabitants.
- #25 SCP: Secret Laboratory
79% matchVery Positive91% of 228,941 reviews2017
Dev: Northwood Studios
Windows
Median: 2.0 hrsMean: 45.3 hrs≥1hr: 65%
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
Why similar: Multiplayer 33.3%, Memes 20.9%, Online Co-Op 20.9%, Co-op 15.8%, First-Person 4.6%
Why You'll Like It: A multiplayer game known for its proximity chat and chaotic, unpredictable social dynamics.
- #26 Anarchy Arcade
81% matchMixed68% of 2,205 reviews2014
Dev: Elijah Newman-Gomez
Windows
Median: 36 minMean: 42.5 hrs≥1hr: 32%
Turn your entire digital life into a game. AArcade is a 3D desktop that launches shortcuts to absolutely anything you like. Join the anarchy of the persistent online metaverse, or remain in your own private reality. Casual in-game building features, plus hundreds of thousands of addons.
Why similar: Multiplayer 28.4%, Sandbox 22.2%, Simulation 18.3%, Funny 10%, Co-op 7%
Why You'll Like It: A sandbox environment that allows for chaotic, multiplayer social interactions in a virtual space.
- #27 MoonMiners
76% matchVery Positive92% of 202 reviews2025
Dev: MIROWINPub: PM Studio
Windows
MoonMiners is a cooperative survival simulator of miners in space, in an alternative dystopian future. You take on the role of space miners working for an evil corporation far from home, and it will be much easier for you to die than to do your job.
Why similar: Space 30.4%, Online Co-Op 17.6%, Multiplayer 12.5%, Simulation 10.6%, Co-op 10.2%
- #28 Project Winter
78% matchVery Positive83% of 19,060 reviews2019
Dev: Other Ocean InteractivePub: Other Ocean Group
Windows
Median: 4.2 hrsMean: 23.6 hrs≥1hr: 84%
Project Winter 2.0: Cabin Fever is an 8-player survival and social deception game where teamwork is vital, but betrayal is inevitable. Face the wilderness, uncover traitors, and survive paranoia in this streamlined yet chaotic multiplayer experience.
Why similar: Multiplayer 44.4%, Funny 28.2%, Strategy 17.4%, Adventure 9.9%
Why You'll Like It: A survival game that emphasizes social deception and cooperation in a harsh, isolated environment.
- #29 MOON BASE
77% matchMixed59% of 85 reviews2021
Dev: Rossiya Segodnya
Windows
In this project you can become an astronaut on the first moon base in human history. You can drive a rover, do some jobs with drilling devices, figure out how solar panels work and walk on the moon surface.
Why similar: Space 67.4%, Simulation 31.5%, Singleplayer 1.1%
- #30 Toribash
77% matchVery Positive88% of 16,774 reviews2014
Dev: Nabi StudiosPub: Nicalis, Inc.
Windows · Mac · Linux
Median: 1.0 hrsMean: 7.8 hrs≥1hr: 51%
Toribash is an innovative free-to-play online turn-based fighting game where you’re able to design your own moves. Complete control over character's body, hundreds of game mods and bloody mess with full body dismemberment - you've never been able to annihilate your enemies like that before!
Why similar: Multiplayer 43.4%, Simulation 16%, Funny 15.6%, Sandbox 12.3%, Strategy 11.9%
- #31 Double Action: Boogaloo
76% matchVery Positive93% of 11,401 reviews2014
Dev: Double Action Factory
Windows · Linux
Median: 1.1 hrsMean: 4.6 hrs≥1hr: 53%
Double Action is a free stylish multiplayer game about diving, flipping, and sliding your way into action movie mayhem.
Why similar: Multiplayer 41.7%, Open World 12.8%, Online Co-Op 11.8%, Funny 11.2%, Co-op 10.3%
- #32 Fistful of Frags
75% matchVery Positive91% of 36,732 reviews2014
Dev: Fistful of Frags Team
Windows · Mac · Linux
Median: 1.8 hrsMean: 10.0 hrs≥1hr: 64%
Multiplayer based, first person enabled, action packed and skill demanding shooter set in the Wild West times. A unique combination of non stop action and slow but powerful weaponry.
Why similar: Online Co-Op 20.9%, Multiplayer 16.5%, Simulation 12.8%, Co-op 11.9%, Massively Multiplayer 11.4%
- #33 IMPACT
72% matchMixed56% of 61 reviews2024
Dev: Hochschule Darmstadt
Windows
IMPACT is an immersive sci-fi game set on the Moon. Build and manage a lunar base, generating valuable scientific data along the way. This data is used by the European Space Agency to train a real AI that will eventually land on the Moon.
Why similar: Space 83.2%, Strategy 16.8%
- #34 Microsoft Flight Simulator X: Steam Edition
73% matchVery Positive87% of 26,197 reviews2014
Dev: Microsoft Game StudiosPub: Xbox Game Studios
Windows
Median: 3.6 hrsMean: 46.6 hrs≥1hr: 71%
Take to the skies in the World’s favourite flight simulator! The multi award winning Microsoft Flight Simulator X lands on Steam for the first time. Take off from anywhere in the world, flying some of the world’s most iconic aircraft to any one of 24,000 destinations.
Why similar: Simulation 33.3%, Multiplayer 21.5%, Open World 15.6%, Realistic 12.1%, Massively Multiplayer 4.1%
- #35 8BitMMO
74% matchMixed60% of 4,325 reviews2015
Dev: Archive Entertainment
Windows · Mac · Linux
Median: 30 minMean: 23.4 hrs≥1hr: 33%
8BitMMO is a retro-style 2D massively multiplayer game! It's a giant construction sandbox -- you can build a home or a castle in a persistent streaming world. Found and manage your own city. Fight evil LawyerCats and engage in Player vs Player battle.
Why similar: Multiplayer 21.5%, Massively Multiplayer 20.2%, Sandbox 19.7%, Open World 15.2%, Online Co-Op 9.5%
- #36 Gear Up
73% matchMostly Positive75% of 8,351 reviews2015
Dev: Doctor Entertainment AB
Windows · Mac · Linux
Median: 1.0 hrsMean: 7.1 hrs≥1hr: 51%
Feel the adrenaline as you control your unique tank in multiplayer arcade action! Build your ultimate war machine from over a million different combinations. Now, will you go for the rumbling caterpillar tracks or the crawling spider legs?
Why similar: Multiplayer 42%, Massively Multiplayer 11.6%, Sandbox 11.3%, Open World 7.9%, Third Person 7.3%
- #37 Star Conflict
71% matchMostly Positive73% of 15,084 reviews2013
Dev: Star Gem Inc.Pub: Gaijin Network Ltd
Windows · Mac · Linux
Median: 2.0 hrsMean: 34.3 hrs≥1hr: 63%
Star Conflict is an action-packed, massively multiplayer space simulation game that puts players in the role of elite pilots engaging in a widespread interplanetary skirmish. The whole world for PVP and PVE!
Why similar: Online Co-Op 34.7%, Open World 19.5%, Massively Multiplayer 18.4%, Sandbox 17.4%, Third Person 10%
- #38 Pirates Vikings & Knights II
71% matchVery Positive88% of 6,130 reviews2010
Dev: Octoshark Studios
Windows · Linux
Median: 1.5 hrsMean: 19.5 hrs≥1hr: 58%
Step into the ultimate three-way war for honor, glory, and gold! This beloved community-driven game brings together swashbuckling Pirates, battle-hardened Vikings, and chivalrous Knights in hilarious and intense class-based combat. Join the fun, embrace the chaos, and fight your way to victory!
Why similar: Multiplayer 51.8%, Funny 19.2%, Memes 15.6%, Massively Multiplayer 7.3%, First-Person 5.3%
- #39 Space Simulator
73% 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 63.3%, Simulation 36.7%
- #40 Cubic Castles
71% matchMostly Positive74% of 4,272 reviews2014
Dev: Cosmic Cow LLC
Windows
Median: 42 minMean: 9.7 hrs≥1hr: 44%
Your blocks, your castle, your world! Build anything you can dream up and explore with other players! Cubic Castles is a mini-MMO that combines the best of block-building and 3D platform action! Create fantastic parkour challenges, explore worlds made by other players, or even make friend!
Why similar: Multiplayer 29.9%, Open World 20.5%, Sandbox 19.1%, Massively Multiplayer 17.6%, Co-op 8%
- #41 Mars Colony:Challenger
72% matchMixed65% of 119 reviews2014
Dev: HyperKat Games
Windows
Mars Colony: Challenger is a 3D first / third person game that offers you the challenge of setting up a remote base on the surface of Mars. At its core, the game was derived from a simulator where everything is interactively tied together.
Why similar: Space 55.6%, Simulation 38%, Adventure 6.4%
- #42 Moon Journey - China's Lunar Exploration Digital Museum
66% matchVery Positive92% of 59 reviews2025
Dev: 郝锐昌工作室
Windows
"Journey to the Moon" is an interactive game that combines lunar exploration with art, culture and science popularization. The core of its development is "space life is coming eventually".
Why similar: Space 52.3%, Simulation 16.7%, Third Person 9.6%, Strategy 9.6%, Adventure 5.4%
- #43 World of Guns: Gun Disassembly
70% matchVery Positive84% of 19,635 reviews2014
Dev: Noble Empire Corp.
Windows · Mac · Linux
Median: 1.0 hrsMean: 9.0 hrs≥1hr: 50%
World of Guns: Gun Disassembly lets you delve into the inner workings of guns from the largest gears to the smallest screws
Why similar: Simulation 44%, Realistic 29.4%, First-Person 12.6%, Puzzle 10.8%, Singleplayer 3.3%
- #44 MoonBase Commander
70% matchVery Positive89% of 180 reviews2014
Dev: Humongous EntertainmentPub: Rebellion
Windows
Median: 2.9 hrsMean: 4.7 hrs≥1hr: 94%
Explore. Strategize. Conquer.In the far future, Mankind has nearly exhausted all of earth’s natural resources. Fragile alliances between nations are tested to their limits as fierce wars ignite across land and space.MoonBase Commander puts you in charge of your own lunar territory in a quest to build the most powerful empire in space.
Why similar: Strategy 100%
- #45 Utopia Colony
69% matchMixed67% of 108 reviews2020
Dev: GridSky Software
Windows
The year is 2033. You, an ex-Marine with little opportunities left, have signed up with Utopia Arura, a large mining corporation on Mars. They have sent you to a location they have proposed but you have chosen for mining. Everything else is up to you.
Why similar: Space 63.9%, Simulation 15.7%, Strategy 8.3%, Third Person 7.3%, Adventure 4.9%
- #46 StarMade
70% matchMixed68% of 2,981 reviews2014
Dev: Schine GmbH
Windows · Mac · Linux
Median: 1.3 hrsMean: 18.8 hrs≥1hr: 54%
The ultimate space sandbox. Participate in epic fleet battles, form alliances, strive to dominate entire galaxies and harness the universe’s resources for your industrious empire or the destruction of others. Customise your experience, the universe is yours!
Why similar: Space 47.3%, Multiplayer 12.8%, Sandbox 12.1%, Open World 10.7%, Simulation 5.8%
- #47 StarbaseSim
65% matchVery Positive97% of 59 reviews2025
Dev: AshtorakSimGames
Windows · Linux
Operate the Starship space launch system and learn how to catch a rocket to understand what it takes to colonize Mars in this ever-evolving simulation of SpaceX Starbase Texas.
Why similar: Space 27.5%, Simulation 20.1%, Sandbox 15.1%, Realistic 8.6%, Open World 7.5%
- #48 Blockland
69% matchMostly Positive73% of 5,537 reviews2013
Dev: Eric HartmanPub: Step 1 Games LLC
Windows
Median: 1.7 hrsMean: 21.7 hrs≥1hr: 63%
Blockland is a non-linear sandbox game with no set goals, giving players the freedom to design and construct elaborate structures. Styled as a tiny minifigure, players build inside of the virtual world using bricks reminiscent of toy blocks.
Why similar: Multiplayer 28.6%, Sandbox 25.9%, Open World 16.5%, Funny 9.4%, Co-op 8.4%
- #49 Codename CURE
67% matchVery Positive85% of 16,490 reviews2017
Dev: Raptor Byte
Windows · Linux
Median: 54 minMean: 5.2 hrs≥1hr: 48%
Codename CURE is a first person, co-operative zombie game with support for up to five players, providing dynamic, fast-paced zombie fragging with both objective, and survival-based missions.
Why similar: Online Co-Op 39%, Multiplayer 29.3%, Co-op 23.4%, First-Person 6.5%, Singleplayer 1.8%
- #50 Astro Colony
65% matchVery Positive82% of 2,509 reviews2022
Dev: Terad Games
Windows
Median: 4.7 hrsMean: 16.3 hrs≥1hr: 78%
Explore endless Universe and create the most efficient constellation of colonies. Build conveyor systems to automate production. Take care of Astronauts and their needs! Establish new colonies as part of intergalactic simulation.
Why similar: Space 42%, Multiplayer 16.5%, Simulation 12.5%, Open World 8.9%, Sandbox 8.4%
- #51 ISS Simulator
64% matchMostly Positive78% of 91 reviews2024
Dev: Spacedata.incPub: 株式会社スペースデータ
Windows
The ultimate space simulator game, precisely modeling the space and space environment inside the International Space Station (ISS).
Why similar: Simulation 30.9%, Space 28.1%, Walking Simulator 24.4%, Realistic 6.9%, Third Person 6.1%
- #52 Startopia
68% matchVery Positive90% of 962 reviews2013
Dev: My Little Planet Ltd
Windows
Median: 30 minMean: 9.0 hrs≥1hr: 39%
A once thriving network of space stations and planets have been left lifeless, redundant scars of the apocalypse. Into this age of darkness comes light. You will lead the way in rebuilding the network of space stations to a standard accepted by the individual alien races, attracting them to harness their expertise and research new...
Why similar: Space 35.7%, Simulation 15.8%, Multiplayer 12.2%, Funny 11.6%, Sandbox 8.9%
- #53 Spacebase Startopia
67% matchMixed56% of 648 reviews2021
Dev: Realmforge StudiosPub: Kalypso Media
Windows · Mac · Linux
Median: 3.4 hrsMean: 5.8 hrs≥1hr: 88%
Spacebase Startopia captivates with its original mixture of economic simulation and empire building strategy paired with classic RTS skirmishes and a good dose of humor.
Why similar: Space 36.2%, Simulation 16.4%, Multiplayer 11.3%, Strategy 9.2%, Sandbox 8%
- #54 Fallen Earth Classic
69% matchMixed60% of 7,558 reviews2012
Dev: Little Orbit
Windows
Median: 1.1 hrsMean: 30.3 hrs≥1hr: 54%
Fallen Earth Classic is a free-to-play massively multiplayer online role-playing game developed by Reloaded Productions and operated by Little Orbit. The game takes place in a post-apocalyptic wasteland located around the American Grand Canyon.
Why similar: Multiplayer 35.3%, Open World 25.7%, Massively Multiplayer 14.3%, Co-op 9.4%, Sandbox 9.1%
- #55 Only If
68% matchMixed62% of 5,958 reviews2014
Dev: Creability
Windows · Mac · Linux
Median: 42 minMean: 5.4 hrs≥1hr: 40%
Only If is a surreal first person adventure-puzzle game. It takes idiom into reality.
Why similar: Walking Simulator 26.9%, Multiplayer 20.4%, Adventure 10.5%, First-Person 8.9%, Open World 8%