- #1 Cosmoteer: Starship Architect & Commander
97% matchVery Positive94% of 12,715 reviews2022
Dev: Walternate Realities
Windows
Median: 19.5 hrsMean: 41.2 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: Spaceships 43.4% ★, Building 16.5%, Space Sim 15.6%, Space 11.3%, Multiplayer 4.3%
Why You'll Like It: It offers the most similar experience by combining intricate modular ship design with tactical, physics-based space combat.
- #2 From the Depths
96% matchVery Positive89% of 12,716 reviews2020
Dev: Brilliant Skies Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 40.7 hrs≥1hr: 81%
Over 1000 unique components allow you to build and command voxel vehicles from the deep ocean to outer space! Forge strategies, allegiances and fleets strong enough to destroy eight deadly factions of the planet and reign supreme. A genre-defying mashup of simulation, building, RTS and RPG.
Why similar: Building 29.9%, Sandbox 24%, Physics 19.8%, Space 14.9%, Multiplayer 7.8%
Why You'll Like It: This game features an incredibly deep building system that allows for total control over every component of your warship.
- #3 Reassembly
96% matchVery Positive94% of 4,079 reviews2015
Dev: Anisoptera GamesPub: Indie Voyage
Windows · Mac · Linux
Median: 5.1 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: Building 37%, Sandbox 26.4%, Space 23.7%, Physics 3.8%, Bullet Hell 3.8%
Why You'll Like It: It emphasizes modular ship construction and physics-driven combat in a vast, procedurally generated galaxy.
- #4 Avorion
95% matchVery Positive90% of 14,488 reviews2020
Dev: Boxelware
Windows · Mac · Linux
Median: 18.5 hrsMean: 99.0 hrs≥1hr: 90%
A procedural co-op space sandbox where players can build their own space ships out of dynamically scalable blocks. Fight epic space battles, explore, mine, trade, wage wars and build your own empire to save your galaxy from being torn apart by an unknown enemy.
Why similar: Spaceships 31.4% ★, Flight 15.1%, Space Sim 12.5%, Building 11.5%, Sandbox 10%
Why You'll Like It: A sandbox space-sim that allows for extensive ship building and exploration with a focus on modular block-based design.
- #5 Space Engineers
94% matchVery Positive89% of 133,963 reviews2019
Dev: Keen Software House
Windows
Median: 9.0 hrsMean: 96.1 hrs≥1hr: 88%
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 Sim 17.8%, Building 16.8%, Sandbox 14.3%, Physics 12.3%, Space 11.6%
Why You'll Like It: The gold standard for physics-based sandbox construction in space, allowing for complex ship and station building.
- #6 Nimbatus - The Space Drone Constructor
94% matchMostly Positive79% of 2,154 reviews2020
Dev: Stray Fawn StudioPub: Stray Fawn Publishing
Windows · Mac · Linux
Median: 3.1 hrsMean: 5.0 hrs≥1hr: 84%
Command the Nimbatus and craft drones out of hundreds of different parts. Survive unknown threats in a fully destructible, procedural universe, compete against other players in different arenas or enjoy complete creative freedom in the sandbox.
Why similar: Space Sim 27.6%, Building 19.3%, Space 16.6%, Sandbox 16.4%, Physics 13.8%
Why You'll Like It: It focuses on physics-based drone construction and testing, mirroring the creative engineering aspects of the seed game.
- #7 Ultimate Admiral: Dreadnoughts
93% matchMixed61% of 7,895 reviews2023
Dev: Game-Labs
Windows
Median: 16.2 hrsMean: 81.5 hrs≥1hr: 87%
Design warships the way you want them, command fleets, win the naval arms race for your nation!
Why similar: Building 56.9%, Sandbox 34.7%, Simulation 8.4%
Why You'll Like It: This game provides a deep focus on the design and tactical deployment of massive warships in a naval combat setting.
- #8 HighFleet
92% matchVery Positive88% of 7,330 reviews2021
Dev: Konstantin KoshutinPub: MicroProse Software
Windows
Median: 4.9 hrsMean: 16.6 hrs≥1hr: 78%
Battle for survival in the skies of a mysterious future Earth in this unique action-strategy game mixing arcade combat, exploration, management and diplomacy. As giant flying ships wage spectacular aerial warfare, a prophecy tells of one who will save the world – could it be you?
Why similar: Building 37.8%, Physics 26.5%, Tactical 15.6%, Simulation 6.4%, Sci-fi 5.8%
Why You'll Like It: This title features unique physics-based ship design and intense, tactical combat that feels very similar to the dreadnought experience.
- #9 NEBULOUS: Fleet Command
91% matchVery Positive81% of 4,297 reviews2022
Dev: Eridanus IndustriesPub: Hooded Horse
Windows
Median: 5.1 hrsMean: 31.7 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: Sandbox 33.7%, Space 26.8%, Tactical 15.8%, Multiplayer 13.8%, Simulation 7.3%
Why You'll Like It: It offers a highly tactical approach to fleet combat, focusing on the strategic management of dreadnought-style vessels.
- #10 Celestial Command
91% matchMixed62% of 701 reviews2014
Dev: Science Interactive
Windows · 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 29.2%, Sandbox 23.2%, Space Sim 17.5%, Building 17%, Simulation 6.8%
Why You'll Like It: A physics-based space simulation that requires careful engineering and management of your ship's modules.
- #11 TerraTech
89% matchVery Positive91% of 24,767 reviews2018
Dev: Payload StudiosPub: Mythwright
Windows · Mac · Linux
Median: 8.2 hrsMean: 32.8 hrs≥1hr: 90%
TerraTech is an open-world, sandbox adventure game, where you design and build your own creations through a mix of crafting, combat and discovery. Design vehicles from a huge library of blocks. Scavenge, craft and buy new parts to survive and become the ultimate planetary prospector.
Why similar: Building 40.9%, Sandbox 30.7%, Physics 10%, Multiplayer 9.3%, PvP 6.4%
Why You'll Like It: This game excels at modular vehicle building and combat, providing a satisfying loop of designing and testing your creations.
- #12 StarMade
90% matchMixed68% of 2,989 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: Sandbox 27.2%, Space 25.4%, Building 22.5%, Space Sim 10.6%, Multiplayer 7%
Why You'll Like It: A voxel-based space sandbox that allows for massive, custom-built capital ships and space stations.
- #13 NavalArt
88% matchVery Positive90% of 2,333 reviews2018
Dev: RigidbodyPub: RZ Entertainment
Windows
Median: 3.6 hrsMean: 49.3 hrs≥1hr: 72%
Design your own warships, equip them with a variety of armament, and bring them out to the ocean!
Why similar: Sandbox 47.9%, Building 47%, Simulation 5.1%
Why You'll Like It: A sandbox building game that focuses on the creation and testing of naval vessels with realistic physics.
- #14 BossConstructor
89% matchMostly Positive74% of 219 reviews2016
Dev: Neomateria Games GmbH
Windows · Mac · Linux
Median: 3.6 hrsMean: 6.8 hrs≥1hr: 77%
Scavenge modules, combine them in the deadliest and most efficient ways imaginable, and fly your very own spaceship through alien space with BossConstructor. Thousands of procedurally generated galaxies await you and your space-faring collection of assembled modules to explore them.
Why similar: Building 30.4%, Space 26.6%, Bullet Hell 13.8%, Physics 12.2%, Simulation 7.9%
Why You'll Like It: It focuses on modular ship building and combat, specifically designed for players who enjoy creating their own unique vessels.
- #15 Starship EVO
87% matchVery Positive84% of 1,485 reviews2020
Dev: Moonfire Entertainment
Windows
Median: 1.6 hrsMean: 6.4 hrs≥1hr: 58%
Mine and craft your way to orbit, build your own starship and explore a vast, dangerous galaxy alongside your crew. For players who love a meaningful survival progression, a unique and elegant building system, and epic space-opera scale.
Why similar: Building 22.8%, Spaceships 16.6% ★, Space 15.9%, Sandbox 15.8%, Space Sim 12%
Why You'll Like It: A sandbox game that prioritizes creative ship building with a focus on functional, physics-based components.
- #16 Barotrauma
85% matchVery Positive94% of 87,800 reviews2023
Dev: FakeFishPub: Daedalic Entertainment
Windows · Mac · Linux
Median: 8.9 hrsMean: 55.5 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 58.2%, Simulation 19%, Sci-fi 18.8%, Singleplayer 3.9%
Why You'll Like It: It features complex submarine building and physics-based combat in a hostile environment, demanding precise engineering.
- #17 Void Destroyer 2
86% matchVery Positive80% of 672 reviews2020
Dev: Iteration 11
Windows
Median: 2.8 hrsMean: 15.3 hrs≥1hr: 74%
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
Why similar: Space Sim 22.4%, Flight 21.1%, Sandbox 17%, Building 15.4%, Space 12.5%
Why You'll Like It: This game blends space combat with ship command and modular design elements for a comprehensive dreadnought experience.
- #18 Trailmakers
84% matchVery Positive92% of 37,343 reviews2019
Dev: Flashbulb
Windows
Median: 3.9 hrsMean: 15.5 hrs≥1hr: 86%
Build the ultimate vehicle and explore a vast open world filled with challenges and adventure. Play solo or team up with friends in multiplayer to conquer the toughest obstacles. With a thrilling campaign mode and endless creative possibilities, Trailmakers is the ultimate sandbox for adventurers.
Why similar: Flight 29.5%, Space 19.1%, Building 17.3%, Sandbox 14.7%, Physics 12.7%
Why You'll Like It: A physics-based building game that allows you to construct complex vehicles and test them in various environments.
- #19 Istrolid
84% matchVery Positive87% of 2,693 reviews2016
Dev: treeform
Windows · Mac · Linux
Median: 1.0 hrsMean: 10.9 hrs≥1hr: 50%
In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.
Why similar: Building 43%, Space 24.4%, Sandbox 16.5%, Multiplayer 9.4%, Sci-fi 3.1%
Why You'll Like It: A strategy game that allows you to design your own ships from scratch using modular parts to battle against other players.
- #20 Empyrion - Galactic Survival
83% matchMostly Positive78% of 34,271 reviews2020
Dev: Eleon Game Studios
Windows
Median: 6.3 hrsMean: 76.9 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: Building 17.9%, Space Sim 17.2%, Sandbox 13.3%, Space 12.6%, Physics 11.2%
Why You'll Like It: This game features robust ship and base building mechanics set within a vast, explorable galaxy.
- #21 Stormworks: Build and Rescue
82% matchVery Positive90% of 59,051 reviews2020
Dev: Geometa
Windows · Mac
Median: 17.1 hrsMean: 112.8 hrs≥1hr: 91%
Join a world where you design, create and pilot your own air sea rescue service. Release your inner hero as you battle fierce storms out at sea to rescue those in need.
Why similar: Flight 29%, Building 23%, Sandbox 22.7%, Physics 15.4%, PvP 9.9%
Why You'll Like It: An advanced engineering sandbox that focuses on building complex, physics-based vehicles for challenging missions.
- #22 Besiege
82% matchOverwhelmingly Positive95% of 52,877 reviews2020
Dev: Spiderling Studios
Windows · Mac · Linux
Median: 2.4 hrsMean: 18.8 hrs≥1hr: 71%
Besiege is a physics building game about constructing medieval machines to annihilate armies, obliterate castles and overcome challenging obstacles. Conquer the campaign or skirmish with friends in Multiplayer!
Why similar: Flight 22.7%, Building 18.2%, Sandbox 15.8%, Physics 13.6%, PvE 9.7%
Why You'll Like It: While set in a different era, its core loop of physics-based building and destruction is a perfect match for the seed game's mechanics.
- #23 Space Haven
79% matchVery Positive86% of 10,886 reviews2026
Dev: Bugbyte Ltd.
Windows · Mac · Linux
Median: 4.2 hrsMean: 20.9 hrs≥1hr: 71%
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
Why similar: Building 25%, Space Sim 24.2%, Sandbox 21.5%, Space 17.9%, Simulation 4.1%
Why You'll Like It: This game combines ship building with management, requiring you to design functional vessels to survive in space.
- #24 Carrier Command 2
81% matchVery Positive82% of 3,716 reviews2021
Dev: GeometaPub: MicroProse Software
Windows · Mac
Median: 9.4 hrsMean: 15.6 hrs≥1hr: 92%
Carrier Command 2 is the real-time strategy game that puts you in command of a futuristic carrier capable of deploying a vast array of aircraft and amphibious units. Compete against AI or human players and hop into every single vehicle to take matters into your own hands!
Why similar: PvP 56.2%, Simulation 22.3%, 3D 21.4%
Why You'll Like It: It offers a deep tactical experience centered on managing a large, complex vehicle and its fleet of drones.
- #25 Hardspace: Shipbreaker
79% matchVery Positive89% of 22,140 reviews2022
Dev: Blackbird Interactive
Windows
Median: 4.7 hrsMean: 24.0 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 22.3%, Physics 19.9%, Sandbox 18.7%, Space Sim 17.3%, Building 10.6%
Why You'll Like It: It provides a unique perspective on space physics and ship construction by focusing on the deconstruction of massive vessels.
- #26 Star Valor
78% matchVery Positive89% of 3,391 reviews2022
Dev: Rafael Burgos
Windows
Median: 4.1 hrsMean: 28.8 hrs≥1hr: 79%
Choose your own destiny as you explore an open-world procedurally generated galaxy where anything is possible. Become a miner, a trader, a bounty hunter, a pirate, or perhaps a jack of all trades. Start off small and build your way to the top but remember with every action, comes consequences.
Why similar: Spaceships 50.9% ★, Sandbox 18%, Space 15%, Space Sim 12.1%, Sci-fi 3%
Why You'll Like It: An open-world space RPG that features modular ship building and combat, allowing for significant customization.
- #27 Spaceflight Simulator
77% matchOverwhelmingly Positive97% of 9,436 reviews2022
Dev: Team Curiosity ✦
Windows · Mac
Median: 5.3 hrsMean: 15.2 hrs≥1hr: 83%
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Why similar: Spaceships 31% ★, Space Sim 20.3%, Sandbox 17%, Space 12.7%, Building 8.1%
- #28 Starminer
76% matchMostly Positive75% of 1,757 reviews2026
Dev: CoolAndGoodGames
Windows
Median: 6.3 hrsMean: 13.6 hrs≥1hr: 82%
Design and build a massive interstellar fleet in this simulation sandbox. Strip space of its minerals for profit, but stay alert: your greed attracts the alien. Master deep base-building and deploy warships to protect your empire in immersive real-time space.
Why similar: Spaceships 37.5% ★, Flight 14.3%, Space Sim 13.4%, Sandbox 11%, Space 8.2%
- #29 Down with the Ship
75% matchVery Positive95% of 653 reviews2026
Dev: Iron Anchor GamesPub: Proxy Studios
Windows · Mac
Strategic auto battler where you design a heavily-armed spaceship. Draft 200+ items, outfit your hull, and unleash it in async PvP. Blend captains and factions for absurd combos and galactic domination. Roll, buy, place, pray.
Why similar: Roguelite 31.5%, Space 28.3%, PvP 21.7%, Multiplayer 12.4%, Sci-fi 6.1%
- #30 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 35.5%, Sandbox 23.2%, Building 14.2%, Space Sim 11.7%, Simulation 6.8%
Why You'll Like It: A space-sim that features a highly modular ship construction system, allowing for complete control over your vessel's capabilities.
- #31 StarShip Constructor
78% matchMixed67% of 267 reviews2017
Dev: SSCTEAM
Windows
Galaxy is on fire! Only you can save it! More than 20 modules and even more weapons and equipment,you can design your own spaceship and defeat the most powerful ships in galaxy!
Why similar: Building 41.4%, Space 30.9%, Sandbox 21.9%, Indie 5.8%
- #32 Between the Stars
75% matchMostly Positive74% of 2,460 reviews2024
Dev: Isolated Games
Windows
Median: 54 minMean: 8.7 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 25.4%, Space 25.4%, Sandbox 14.3%, Flight 10.9%, Roguelite 8.9%
- #33 Space Architect
74% matchMostly Positive76% of 290 reviews2024
Dev: Albert WiatrPub: PlayWay S.A.
Windows
Design your dream space station in Space Architect! Master the power of automation or 'hire' an army of crewmates to handle your ever-growing production. Mine asteroids, fabricate goods, and engage in interstellar trade to pay off the menacing Big Evil Corp. Will you thrive in the vastness of space?
Why similar: Building 35.2%, Sandbox 28.5%, Space 18.3%, Simulation 6%, Sci-fi 5.9%
- #34 Rocket Science
76% matchVery Positive81% of 174 reviews2020
Dev: unbeGames
Windows
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
Why similar: Flight 21.5%, Building 17.2%, Space Sim 16.9%, Sandbox 14.8%, Space 12.7%
- #35 Autocraft
77% matchMixed56% of 298 reviews2017
Dev: Alientrap
Windows · Mac
Median: 54 minMean: 3.2 hrs≥1hr: 44%
Create, Collect, and Crash in Autocraft, a physics destruction sandbox. Create your own cars, rockets, tanks, planes, boats, and more.
Why similar: Sandbox 25.7%, Building 24.6%, Physics 16.8%, Space 13%, Space Sim 9.2%
- #36 Dyson Sphere Program
72% matchOverwhelmingly Positive97% of 91,085 reviews2021
Dev: Youthcat StudioPub: Gamirror Games
Windows
Median: 13.1 hrsMean: 75.3 hrs≥1hr: 84%
Build the most efficient intergalactic factory in space simulation strategy game Dyson Sphere Program! Harness the power of stars, collect resources, plan and design production lines and develop your interstellar factory from a small space workshop to a galaxy-wide industrial empire.
Why similar: Building 28.4%, Space 25.4%, Sandbox 19.3%, Space Sim 14.6%, Simulation 4.2%
- #37 X4: Foundations
74% matchMostly Positive80% of 29,356 reviews2018
Dev: Egosoft
Windows · Linux
Median: 5.0 hrsMean: 94.8 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: Flight 28.4%, Space Sim 23.7%, Sandbox 18.3%, Space 17.3%, 3D 4%
- #38 Out of Orbit
73% matchMostly Positive80% of 162 reviews2023
Dev: Case Yellow Labs
Windows
Design, build, or pirate spaceships. Build bases on planets. Explore endless randomly generated universes, travel through black holes, command your crew, survive cosmic events, collect and trade materials, battle epic bosses, and much more. The sky is the limit, literally!
Why similar: Spaceships 45.9% ★, Sandbox 17.9%, Building 16.1%, Space 11.4%, Space Sim 6.7%
- #39 Executive Assault 2
73% matchVery Positive83% of 1,751 reviews2023
Dev: Hesketh Studios Ltd
Windows · Mac
Median: 3.7 hrsMean: 8.2 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 Sim 35.2%, Building 33%, Space 19%, Multiplayer 7.7%, Sci-fi 3.6%
- #40 Sins of a Solar Empire II
71% matchVery Positive84% of 8,475 reviews2024
Dev: Ironclad Games CorporationPub: Stardock Entertainment
Windows
Median: 9.5 hrsMean: 30.9 hrs≥1hr: 85%
Battle for galactic dominance in this real-time 4X strategy game with unrivaled scale! You’ll explore, expand, exploit, and exterminate through military force, diplomacy, trade, culture, influence, and other underhanded tactics.
Why similar: Space 37.1%, PvE 16.7%, PvP 13%, Tactical 11%, Multiplayer 10.1%
- #41 ShipCrafter
71% matchVery Positive92% of 190 reviews2025
Dev: MyrmecomanPub: MoreButterGames
Windows · Linux
ShipCrafter is a naval sandbox simulation game. Build your ship, unlock new components and defeat increasingly powerful foes in the campaign !
Why similar: Sandbox 48.7%, Physics 16.4%, Simulation 14.4%, PvE 9.7%, 3D 8.1%
- #42 Mech Havoc
70% matchOverwhelmingly Positive97% of 714 reviews2025
Dev: Mid DevelopmentPub: Pretty Soon
Windows
Median: 3.3 hrsMean: 5.4 hrs≥1hr: 73%
Sandbox of destruction. Billion different ways to build your mech. Feel the weight and impact of obliteration in this modern old school mech combat sim.
Why similar: Physics 50.6%, Tactical 20.1%, Simulation 10.9%, Sci-fi 9.9%, Indie 5.2%
- #43 Rover Builder
72% matchMixed68% of 81 reviews2022
Dev: Hatfuls GamesPub: PQube
Windows
Rover Builder is a 3D engineering sim tasking you to create the right rover to complete the job. Unleash your creativity in the garage, building vehicles using an impressive array of parts, materials and machinery. Or try your hand at level editor - creating entire missions and levels from scratch!
Why similar: Building 27.7%, Sandbox 23.9%, Physics 19.5%, Space 16.9%, 3D 4.8%
- #44 The Last Starship
68% matchMostly Positive75% of 1,617 reviews2026
Dev: Introversion Software
Windows · Mac
Median: 5.9 hrsMean: 11.4 hrs≥1hr: 80%
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
Why similar: Space Sim 26%, Building 23.9%, Sandbox 21.3%, Space 17.1%, Simulation 4.1%
- #45 Archean
69% matchVery Positive88% of 243 reviews2024
Dev: batcholi
Windows · Linux
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
Why similar: Building 22%, Space Sim 21.5%, Sandbox 19.1%, Physics 14.5%, Space 14.2%
- #46 Nimbatus - Drone Creator
71% matchVery Positive91% of 274 reviews2020
Dev: Stray Fawn Studio
Windows · Mac · Linux
Median: 42 minMean: 5.3 hrs≥1hr: 40%
Use the Nimbatus Drone Creator to construct physically simulated drones and try them out in a virtual testing environment. Do you have what it takes to become a drone engineer?
Why similar: Flight 20.2%, Space Sim 16.5%, Sandbox 15.6%, Physics 11.9%, Building 11.4%
- #47 Command Deck
68% matchVery Positive99% of 81 reviews2025
Dev: k-critical
Windows · Mac
A retro sci-fi deckbuilder where enemies play by the same rules as you. Command your ship, build powerful deck combinations, and watch your decisions unfold in fast-paced, satisfying space combat.
Why similar: Spaceships 62.4% ★, Space Sim 16.2%, Space 14.1%, Sci-fi 3.6%, 3D 2.6%
- #48 Habitat
73% matchMostly Negative40% of 261 reviews2016
Dev: 4gencyPub: Versus Evil
Windows · Mac · Linux
Median: 3.1 hrsMean: 3.9 hrs≥1hr: 85%
Habitat is a physics-based space game where you build, fly, and fight with whatever you can find out in space. Upgrade and arm your creations with weapons and structures you find in orbit, fly and explore using rocket physics.Battle deadly enemies in Campaign Mode to save humanity or explore Sandbox Mode for true creative control.
Why similar: Space 39.9%, Sandbox 31%, Physics 14.8%, Simulation 8.9%, Indie 5.4%
- #49 Space Simulation Toolkit
70% matchVery Positive81% of 503 reviews2020
Dev: Pavel Kudinov
Windows
Physics sandbox game that uses a graphics card as a supercomputer. Change the laws of physics, design mechanisms, create A-Life worlds and inhabit them with living beings, experiment with evolution and AI.
Why similar: Sandbox 23.8%, Physics 20.4%, Space Sim 17.9%, Space 11.5%, Building 9.3%
- #50 Aviassembly
65% matchOverwhelmingly Positive97% of 9,083 reviews2025
Dev: Jelle Booij
Windows
Median: 6.3 hrsMean: 7.4 hrs≥1hr: 82%
Build and fly your own airplane! Complete missions to earn money, upgrade your plane, and discover new locations in an open world.
Why similar: Flight 30.9%, Building 26.8%, Sandbox 18.9%, Physics 17.4%, Simulation 2.4%
- #51 Deep Space Battle Simulator
69% matchMostly Positive78% 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 Sim 43%, Space 25.8%, Multiplayer 12.8%, Sci-fi 6.4%, Simulation 6%
- #52 Disassembly 3D
70% matchVery Positive80% of 332 reviews2017
Dev: Khor Chin Heong
Windows
Disassembly and destruction physics sandbox simulator. Detailed models of objects and vehicles and their internal parts. Disassemble objects successfully to unlock weapons mode and destruction. Fight evil mannequins with everything you got in physical combat!
Why similar: Flight 24%, Building 18.9%, Sandbox 16.6%, Bullet Hell 15.7%, Physics 15.6%
- #53 Starforged Legacy
65% matchVery Positive89% of 140 reviews2026
Dev: Second Shift Games
Windows
Outlast the onslaught in a sci-fi survivors-like where your decisions matter as much as your firepower. Command customizable starships, enhance your arsenal with 100+ strategy-defining upgrades, and annihilate endless fleets of cosmic combatants! Carve your legacy among the stars or die trying!
Why similar: Bullet Hell 35%, Roguelite 29.9%, Space 21%, 3D 6.9%, Sci-fi 6%
- #54 Starpoint Gemini Warlords
69% matchMostly Positive73% of 3,584 reviews2017
Dev: Little Green Men Games
Windows
Median: 4.1 hrsMean: 10.9 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: Spaceships 40.8% ★, Flight 15%, Space Sim 14.9%, Space 12.2%, Sandbox 10.4%
- #55 Space Engineers 2
65% matchMostly Positive75% of 4,798 reviews2025
Dev: Keen Software House
Windows
Median: 1.4 hrsMean: 8.1 hrs≥1hr: 60%
Space Engineers 2 is a playable Early Access Alpha sandbox focused on engineering, exploration, and colonization in a fully destructible universe. Design and build ships, stations, and planetary bases while uncovering the story of Miro and Ivan Sokol. Help shape the future of the Almagest system.
Why similar: Building 22.8%, Sandbox 19.9%, Space Sim 17%, Physics 15.3%, Space 15.2%
- #56 Space Will
66% matchVery Positive98% of 87 reviews2024
Dev: 张亮002Pub: Aori Games
Windows
Sixty basic cores, hundreds of base station equipment, and thousands of chips, you can freely cooperate and shoot through the dual-angle joystick operation in a survival Roguelike game! Explore the sci-fi space and build your strongest battleship!
Why similar: Space 36%, Space Sim 27%, Roguelite 14.9%, Sci-fi 10.7%, 3D 7.1%
- #57 SHIPS AT WAR
67% matchMostly Positive77% of 388 reviews2021
Dev: Golddorf Spieleentwicklung
Windows
Sink player-made battleships, aircraft carriers and submarines in this physics-based game. Use pre-built ships and sink the enemy by deploying aircraft, torpedoes, depth charges or shells. Or built your own ships in the extensive ship-editor.
Why similar: Sandbox 33.7%, Physics 27.6%, Building 24.8%, PvE 9%, Simulation 3.8%
- #58 Interstellar Rift
67% matchMixed68% of 1,663 reviews2020
Dev: Split PolygonPub: Iceberg Interactive
Windows
Median: 4.2 hrsMean: 33.4 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 Sim 25.5%, Building 22.9%, Sandbox 18.2%, Space 13.2%, PvP 10.5%