Games like Kerbal Space Program
by Squad
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.
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Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
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$49.99Kerbal Space Program 2
Feb 24 · Intercept Games
Both: Space · Sandbox · Building
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.
SpaceSandboxExplorationBuildingPhysicsScienceDifficultSimulationOpen WorldFunny👍 27,940
$14.99Spaceflight Simulator
Feb 17 · Team Curiosity ✦
Both: Sandbox · Space Sim · Space
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
SandboxSpace SimSpaceSimulation2DExplorationSingleplayerScienceCraftingSpaceships👍 9,440
$19.99Rocket Science
Feb 20 · unbeGames
Both: Space · Sandbox · Building
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.
SpaceExplorationSandboxBuildingPhysicsScienceSimulationSpace SimFlightRealistic👍 165
$19.99Juno: New Origins
Jan 26 · Jundroo, LLC
Both: Building · Science · Space Sim
Bring to life anything you can imagine from rockets and airplanes to cars and more. Automate them with a visual programming language. Explore 3D planets and make your own. Share your creations online. Complete contracts, conquer milestones, and unlock technology in the newly added Career Mode.
BuildingScienceSpace SimProgrammingFlightEducationBase BuildingRealisticSandboxPhysics👍 3,088
-50%$9.99Space Engineers
Feb 28 · Keen Software House
Both: Sandbox · Building · Space
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.
SandboxBuildingSpaceSurvivalSimulationPhysicsOpen WorldMultiplayerBase BuildingSingleplayer👍 102,609
$29.99Universe Sandbox
Aug 24 · Giant Army
Both: Sandbox · Space · Education
Create & destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.
Early AccessSimulationSandboxIndieSpaceEducationSpace SimRelaxingPhysicsOpen World👍 27,857
-20%$23.99Space Engineers 2
Jan 27 · Keen Software House
Both: Sandbox · Building · Space
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.
SandboxBuildingSpaceSurvivalSci-fiSimulationPhysicsModdableDestructionOpen World👍 5,102
$7.99SimpleRockets
Jun 3 · Jundroo, LLC
Both: Sandbox · Physics · Space Sim
I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.
SimulationSandboxPhysicsSpace SimIndieSpace2D👍 280
$9.99Take On Mars
Feb 9 · Bohemia Interactive
Both: Space · Science · Building
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.
SimulationSpaceMarsExplorationSurvivalScienceBuildingMultiplayerSpace SimSandbox👍 1,750
-75%$4.99KitHack Model Club
Aug 1 · Floating Origin Interactive
Both: Moddable · Physics · Sandbox
Developed by the creator of the original Kerbal Space Program, KitHack Model Club is a physics-based model building sandbox that offers limitless freedom for you and your friends. Design, build, battle, fly (and crash!) your very own RC vehicles, or experiment with over 2,400 ready-made vehicles!
ModdableOpen WorldVehicular CombatIndiePhysicsSandboxExplorationSimulationEducationBuilding👍 599
$19.99Mars Horizon
Nov 17 · Auroch Digital
Both: Space · Education · Space Sim
Lead a major space agency as you guide humanity to Mars in this strategy simulation game. Construct a base, design and build rockets, conduct missions throughout the Solar System, and write your own history of Space exploration. Created with support from the European Space Agency.
ManagementSpaceStrategyEducationMarsSpace SimScienceHistoricalChoices MatterBuilding👍 2,757
$29.99SpaceEngine
Jun 11 · Cosmographic Software
Both: Sandbox · Space · Space Sim
The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.
Early AccessOpen WorldSci-fiCasualSandboxSpaceSpace Sim3DRealisticScience👍 15,848
$14.99StarMade
Dec 4 · Schine GmbH
Both: Space · Sandbox · Building
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!
SpaceSandboxOpen WorldBuildingMultiplayerSci-fiVoxelAdventureIndieAction👍 2,199
$19.99Empyrion - Galactic Survival
Aug 5 · Eleon Game Studios
Both: Space · Building · Space Sim
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!
SimulationCo-opSpaceOpen World Survival CraftSurvivalBuildingOpen WorldExplorationSpace SimSandbox👍 29,209
$49.99X4: Foundations
Nov 30 · Egosoft
Both: Space · Space Sim · Sandbox
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.
SpaceSimulationOpen WorldSpace SimExplorationSandboxSci-fi4XStrategyEconomy👍 25,274
$19.99Archean
May 16 · batcholi, FloDKSM
Both: Sandbox · Building · Science
Gather resources, craft components, build vehicles, and code their logic in a physics-driven engineering sandbox and full scale space sim.
Early AccessSandboxBuildingProgrammingImmersive SimOpen WorldCraftingScienceSpaceSpace Sim👍 240
-30%$17.49Space Simulation Toolkit
Jun 5 · Pavel Kudinov
Both: Sandbox · Physics · Space
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.
SimulationSandboxPhysicsEarly AccessIndieArtificial Intelligence2DSpaceSpace SimEducation👍 501
$24.99Starship EVO
Jun 19 · Moonfire Entertainment
Both: Building · Space · Sandbox
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.
IndieActionSimulationBuildingSpaceAdventureSandboxSci-fiOpen WorldEarly Access👍 1,322
-25%$26.24Reentry - A Space Flight Simulator
Nov 7 · Lyra Creative
Both: Space · Space Sim · Science
Do you have what it takes to become an astronaut? Reentry is a realistic space flight simulator inspired by the early NASA space programs, from orbiting Earth in Mercury and Gemini, to the moon landing in project Apollo. Learn the procedures. Operate the spacecraft. Complete the mission.
SpaceSimulationFlightSpace SimRealisticOpen WorldImmersive SimScienceExplorationPhysics👍 1,322
$19.99The Last Starship
Feb 3 · Introversion Software
Both: Sandbox · Space · Space Sim
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!
StrategySandboxSpaceSimulationSingleplayerBase BuildingSci-fiSpace SimBuildingMining👍 1,625
$34.99Starbase
Jul 29 · Frozenbyte
Both: Building · Space Sim · Sandbox
Starbase is a hybrid voxel/vertex-based space MMO with a fully destructible and infinitely expanding universe, with a focus on building and designing spaceships and stations, exploration, resource gathering, crafting, trading, and combat.
Open WorldBuildingMassively MultiplayerSpace SimSimulationSandboxSpaceSci-fiActionEarly Access👍 6,219
$24.99Avorion
Mar 9 · Boxelware
Both: Sandbox · Space Sim · Building
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.
SandboxExplorationSpace SimBuildingSpaceOpen WorldFlightPvEChoose Your Own Adventure3D👍 13,003
$19.99Cosmoteer: Starship Architect & Commander
Oct 24 · Walternate Realities
Both: Building · Space · Space Sim
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!
Sci-fiSingleplayerBuildingSpace2DIndieStrategySpace SimExplorationMultiplayer👍 12,019
-80%$2.99Habitat
Jan 26 · 4gency
Both: Space · Sandbox · Physics
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.
StrategySpaceIndieSimulationActionSandboxSurvivalAdventurePhysicsEarly Access👍 171
$19.99Ostranauts
Aug 3 · Blue Bottle Games
Both: Space Sim · Sandbox · Space
Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
FlightSimulationSpace SimSandboxDifficultSurvivalSpaceExplorationLife SimProcedural Generation👍 3,141
$12.99SimplePlanes
Dec 17 · Jundroo, LLC
Both: Sandbox · Physics · Building
Build airplanes by snapping parts together, designing wing sections, and attaching engines. At any time, you can strap yourself into the cockpit and see how it flies with realistic physics. If you're not in the mood for building, over 100,000 airplanes are available to download for free.
FlightSandboxPhysicsBuildingAutomationExplorationRacingAutomobile SimControllerCombat Racing👍 9,811
$9.99ΔV: Rings of Saturn
Jul 21 · Kodera Software
Both: Space · Physics · Space Sim
A physics-based mining sim, set in the thickest debris field in Sol. Every action has a reaction, lasers are invisible without a medium, and your thrust is a potent weapon. Find trade, adapt your equipment to your playstyle, hire a crew to help. Unravel the mysteries of the rings, or just get rich.
SpaceSci-fiPhysicsSingleplayerExplorationTop-DownSpace SimImmersive SimVehicular CombatOpen World👍 2,883
$9.99Kinetic Void
Nov 21 · Badland Studio
Both: Space · Sandbox · Building
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.
SpaceSimulationIndieActionSandboxSci-fiSingleplayerBuildingSpace SimAdventure👍 1,384
$19.99orbit.industries
Apr 21 · LAB132
Both: Space · Space Sim · Building
🚀 Become a Space Pioneer by building and managing a station of your own on the orbit of distant planets! Focus on design and management or fulfill objectives to progress. 🛰️ Explore, Build and Prosper!
Space3DResource ManagementSpace SimManagementBuildingSimulationAutomationSandboxEconomy
$9.99Astrox: Hostile Space Excavation
Nov 30 · Jace Masula
Both: Space · Sandbox · Space Sim
Exiled to a deep space mining sector, you are left with a crappy ship, a laser, and a small mining beam. It is up to you to survive by working your way through the galaxy. Mine asteroids, refine and trade the ore, buy upgrades for your ship, hunt pirates... you get it.
SimulationSpaceIndieAdventureSandboxOpen WorldMiningSpace SimSingleplayerProcedural Generation👍 446
$24.99Space Haven
May 13 · Bugbyte Ltd.
Both: Space · Sandbox · Building
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.
Colony SimBase BuildingSurvivalStrategySpaceManagementSandboxSimulationBuildingSci-fi👍 10,267
$19.99Interstellar Rift
Sep 24 · Split Polygon
Both: Space Sim · Building · Sandbox
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!
Space SimBuildingOpen WorldExplorationCraftingSandboxPvPMiningSurvivalFirst-Person👍 1,411
$34.99Solargene
Jan 19 · Alexander Semenov
Both: Space Sim · Sandbox · Building
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
Colony SimBase BuildingCity BuilderSpace SimResource ManagementSandboxManagementBuildingEconomyStrategy👍 777
Also worth a look
Share some of the same DNA, but further from the original.
$19.99SPORE™
Dec 19 · Maxis™
Both: Sandbox · Space · Science
Be the architect of your own universe with Spore, an exciting single-player adventure. From Single Cell to Galactic God, evolve your creature in a universe of your own creations.
God GameOpen WorldSandboxColony SimSimulationExplorationSpaceCasualCuteScience👍 66,890

