Games like Kerbal Space Program on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Kerbal Space Program are available at the bottom of the page.
Filters & Lists
X4: Foundations
Thrilling space battles meet deep strategy. X4 invites you to explore, fight, trade, and build an empire in a dynamic, fully simulated space sandbox, where every decision shapes your journey. Now featuring the 2025 flight model overhaul.
Breakwaters: Crystal Tides
Survive in a world ravaged by massive Titans and an ever changing ocean sim. Displace water to find resources for building and crafting unique items. Swim, sail, and fly to explore new islands and fight Titans.
Poly Bridge 2
The acclaimed bridge-building indie-hit is back! More levels, more features, more physics fun!
Cosmoteer: Starship Architect & Commander
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!
Tracks - The Train Set Game
Jump into the ultimate toy sandbox and build the train set of your dreams! Create colourful railway systems, decorate beautiful towns, transport commuting passengers, and even ride your train in first-person.
Marble Mayhem: Fragile Ball
Devilishly difficult but insanely rewarding physics puzzler. Play through 85 levels of diverse and ingenious physics-based challenges.
Poly Bridge
Unleash your engineering creativity with an engaging and fresh bridge-building simulator with all the bells and whistles. Enjoy hours of physics-based puzzle solving in the Campaign and then jump in the Sandbox to create your own bridge designs and puzzles!
Interstellar Rift
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!
SpaceChem
Zachtronics is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!
Marble World
Marble World is a physics sandbox simulator with marbles. Create your own marble races, runs and machines. Customize a variety of tracks, decorations and marbles to create a beautiful world.
Winter Resort Simulator 2
Winter Resort Simulator 2 is the extensive simulation of a ski area with all its exciting technical facilities and vehicles.
ZUSI 3 - Aerosoft Edition
Zusi 3 Aerosoft Edition is a train simulation for PCs, the professional version of which is also being used in railway companies for engine driver training purposes.
Car Mechanic Simulator 2018
Build and expand your repair service empire in this incredibly detailed and highly realistic simulation game, where attention to car detail is astonishing. Find classic, unique cars in the new Barn Find module and Junkyard module. You can even add your self-made car in the Car Editor.
Nimbatus - The Space Drone Constructor
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.
Viscera Cleanup Detail
In Viscera Cleanup Detail, you step into the boots of a space-station janitor tasked with cleaning up after various horrific sci-fi horror events. Instead of machineguns and plasma-rifles, your tools are a mop and bucket. That hero left a mess, and it's up to you to deal with the aftermath.
GearBlocks
Explore a world of creative building, interactive machines, and gears - lots of gears. Build all things mechanical: cars, trucks, cranes, tanks, gearboxes, engines, clocks, anything you can think of. Test your creations to destruction in challenging scenarios, and share them in the workshop!
Diesel Railcar Simulator
Drive vintage diesel trains, shifting gears manually and trying to reach a perfect score. Create new routes, trains and timetables. Share your creations and download new content from the Workshop.
Mutilate-a-Doll 2
A highly customizable virtual stressball and physics sandbox about mutilating ragdolls in various ways using an overwhelming amount of weapons and tools.
Ancient Warfare 3
Dive into a sandbox full of action and customization! Choose from different game modes like deathmatch, conquest, king of the hill, zombie survival and many more. Create your own scenarios and content in the easy to use in-game editors or use one of the 50k+ workshop items from other players...
Prehistoric Kingdom
Take control of limitless power in Prehistoric Kingdom to build, manage and grow the ultimate zoo for extinct animals.
X: Beyond the Frontier
The Human Race had advanced to the point where we could travel among the stars, we developed giant automated machines to help us colonise other worlds, but there was a fault in their programming and they turned and attacked. Forcing us to lay a trap to protect Earth and exiling the Human race to stay on Earth once again.
People Playground
Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space.
Occupy Mars: The Game
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.
Avorion
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.Most played games like Kerbal Space Program on Steam
Take a look at the top games like Kerbal Space Program that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. RimWorld
Similarity 59% A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more. RimWorld is a colony sim, base-building and survival game developed and published by Ludeon Studios. Released on October 17th 2018 has received 208,163 reviews of which 203,940 were positive and 4,223 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played game like Kerbal Space Program, thanks to its 18,188 peak concurrent players over the last day.
9.7
203,940
4,223
18,188
players
2. Garry's Mod
Similarity 56% Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play. Garry's Mod is a sandbox, moddable and multiplayer game developed by Facepunch Studios and published by Valve. Released on November 29th 2006 has received 1,153,288 reviews of which 1,116,314 were positive and 36,974 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 15,709 players online at once in the last 24 hours, this game is currently ranked #2 among games like Kerbal Space Program based on player count.
9.6
1,116,314
36,974
15,709
players
3. BeamNG.drive
Similarity 50% A dynamic soft-body physics vehicle simulator capable of doing just about anything. BeamNG.drive is a simulation, driving and physics game developed and published by BeamNG. Released on May 29th 2015 has received 316,795 reviews of which 308,580 were positive and 8,215 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 13,689 players online at once in the last 24 hours, this game is currently ranked #3 among games like Kerbal Space Program based on player count.
9.6
308,580
8,215
13,689
players
4. No Man's Sky
Similarity 58% No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe. No Man's Sky is a open world, open world survival craft and space game developed and published by Hello Games. Released on August 12th 2016 has received 350,242 reviews of which 290,801 were positive and 59,441 were negative resulting in a rating of 8.2 out of 10. With 5,653 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Kerbal Space Program.
8.2
290,801
59,441
5,653
players
5. Elite Dangerous
Similarity 55% Take control of your own starship in a cutthroat galaxy. Elite Dangerous is the definitive massively multiplayer space epic. Elite Dangerous is a space sim, space and open world game developed and published by Frontier Developments. Released on April 02nd 2015 has received 99,333 reviews of which 76,805 were positive and 22,528 were negative resulting in a rating of 7.7 out of 10. With 4,976 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Kerbal Space Program.
7.7
76,805
22,528
4,976
players
6. Space Engineers
Similarity 62% Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive. Space Engineers is a space, sandbox and building game developed and published by Keen Software House. Released on February 28th 2019 has received 131,878 reviews of which 116,777 were positive and 15,101 were negative resulting in a rating of 8.7 out of 10. With 4,402 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Kerbal Space Program.
8.7
116,777
15,101
4,402
players
7. Oxygen Not Included
Similarity 68% Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive. Oxygen Not Included is a colony sim, base-building and survival game developed and published by Klei Entertainment. Released on July 30th 2019 has received 127,555 reviews of which 123,406 were positive and 4,149 were negative resulting in an impressive rating of 9.5 out of 10. With 4,349 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Kerbal Space Program.
9.5
123,406
4,149
4,349
players
8. People Playground
Similarity 52% Shoot, stab, burn, poison, tear, vaporise, or crush ragdolls in a large open space. People Playground is a sandbox, gore and physics game developed by mestiez and published by Studio Minus. Released on July 23rd 2019 has received 279,084 reviews of which 275,133 were positive and 3,951 were negative resulting in an impressive rating of 9.8 out of 10. With 3,904 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Kerbal Space Program.
9.8
275,133
3,951
3,904
players
9. X4: Foundations
Similarity 55% Thrilling space battles meet deep strategy. X4 invites you to explore, fight, trade, and build an empire in a dynamic, fully simulated space sandbox, where every decision shapes your journey. Now featuring the 2025 flight model overhaul. X4: Foundations is a space sim, simulation and sandbox game developed and published by Egosoft. Released on November 30th 2018 has received 23,455 reviews of which 18,628 were positive and 4,827 were negative resulting in a rating of 7.8 out of 10. With 2,503 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Kerbal Space Program.
7.8
18,628
4,827
2,503
players
10. Dyson Sphere Program
Similarity 60% 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. Dyson Sphere Program is a automation, space and base-building game developed by Youthcat Studio and published by Gamirror Games. Released on January 20th 2021 has received 84,667 reviews of which 82,683 were positive and 1,984 were negative resulting in an impressive rating of 9.6 out of 10. With 1,702 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Kerbal Space Program.
9.6
82,683
1,984
1,702
players
Best deals on games like Kerbal Space Program on Steam
Discover fantastic savings with the best discounts on a variety of games like Kerbal Space Program available on Steam right now, updated on April 30th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Kerbal Space Program.
1. Tin Can
Similarity 55% You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive? Tin Can is a simulation, space and survival game developed by Tin Can Studio and published by Tin Can Studio and IndieArk. Released on May 12th 2022 has received 1,181 reviews of which 1,000 were positive and 181 were negative resulting in a rating of 8.1 out of 10. Featuring a massive 94% discount, this game currently holds the #1 spot in the best deals for games like Kerbal Space Program.
8.1
1,000
181
-94%
16.67€
1.00€
2. Juno: New Origins
Similarity 79% 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. Juno: New Origins is a building, science and space sim game developed and published by Jundroo and LLC. Released on January 26th 2023 has received 3,082 reviews of which 2,776 were positive and 306 were negative resulting in a rating of 8.7 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like Kerbal Space Program.
8.7
2,776
306
-93%
18.43€
1.29€
3. Bridge Constructor Portal
Similarity 58% Enter the Aperture Science Enrichment Center and experience Bridge Constructor Portal – the unique merging of the classic Portal™ and Bridge Constructor™ games. Bridge Constructor Portal is a puzzle, simulation and strategy game developed by ClockStone and published by Headup. Released on December 20th 2017 has received 6,536 reviews of which 5,989 were positive and 547 were negative resulting in a rating of 8.9 out of 10. Thanks to its incredible 92% discount, this game is now the #3 best deal in games like Kerbal Space Program.
8.9
5,989
547
-92%
9.99€
0.79€
4. Distant Worlds: Universe
Similarity 50% Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game. Distant Worlds: Universe is a strategy, 4x and space game developed by Code Force and published by Slitherine Ltd.. Released on May 23rd 2014 has received 1,816 reviews of which 1,376 were positive and 440 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 92% discount, this title has earned the #4 position in the best deals for games like Kerbal Space Program.
7.3
1,376
440
-92%
28.00€
2.24€
5. Car Mechanic Simulator 2018
Similarity 54% Build and expand your repair service empire in this incredibly detailed and highly realistic simulation game, where attention to car detail is astonishing. Find classic, unique cars in the new Barn Find module and Junkyard module. You can even add your self-made car in the Car Editor. Car Mechanic Simulator 2018 is a simulation, automobile sim and driving game developed by Red Dot Games and published by PlayWay S.A.. Released on July 28th 2017 has received 51,304 reviews of which 46,857 were positive and 4,447 were negative resulting in a rating of 9.0 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like Kerbal Space Program.
9.0
46,857
4,447
-91%
20.22€
1.82€
6. VoidExpanse
Similarity 52% Explore the vast reaches of VoidExpanse -- mine asteroids, upgrade your ship, trade, complete missions, advance your character and survive fast-paced combat with hostile aliens and mercenaries in the rich and exciting Sci-Fi universe of VoidExpanse! VoidExpanse is a space, rpg and open world game developed and published by AtomicTorch Studio. Released on April 02nd 2015 has received 748 reviews of which 534 were positive and 214 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 91% discount, this title has earned the #6 position in the best deals for games like Kerbal Space Program.
6.9
534
214
-91%
15.11€
1.36€
7. Hardspace: Shipbreaker
Similarity 62% 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! Hardspace: Shipbreaker is a space, sci-fi and simulation game developed by Blackbird Interactive and published by Focus Entertainment. Released on May 24th 2022 has received 20,286 reviews of which 18,156 were positive and 2,130 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 89% discount, this title has earned the #7 position in the best deals for games like Kerbal Space Program.
8.8
18,156
2,130
-89%
36.18€
3.98€
8. Breathedge
Similarity 50% Survive in outer space! Together with your immortal chicken, discover the truth behind your sudden spaceship crash. Craft tools, pilot vehicles, and even control space stations to survive and explore the wreckage. Breathedge is a open world survival craft, space and singleplayer game developed by RedRuins Softworks and published by RedRuins Softworks and HypeTrain Digital. Released on February 25th 2021 has received 15,194 reviews of which 12,524 were positive and 2,670 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 88% discount, this title has earned the #8 position in the best deals for games like Kerbal Space Program.
8.1
12,524
2,670
-88%
24.42€
2.93€
9. Dude Simulator 3
Similarity 50% Dude Simulator 3 is an open world sandbox game. It is your friend’s birthday tomorrow. You have already bought him a present, now you only have to give it to him. But your friends lives in another city, quite far from you. Dude Simulator 3 is a simulation, indie and adventure game developed and published by Kiddy. Released on August 23rd 2019 has received 2,095 reviews of which 1,427 were positive and 668 were negative resulting in a rating of 6.6 out of 10. Currently offered at a significant 86% discount, this title has earned the #9 position in the best deals for games like Kerbal Space Program.
6.6
1,427
668
-86%
4.99€
0.69€
10. X3: Reunion
Similarity 51% X3: Reunion continues the epic space saga, blending deep space trading and intense real-time combat. Explore a vast universe, establish your empire, and shape the new frontier. With enhanced graphics and intricate economies, it's a journey of strategy, simulation, and interstellar intrigue. X3: Reunion is a space, simulation and strategy game developed and published by Egosoft. Released on July 21st 2006 has received 684 reviews of which 493 were positive and 191 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 85% discount, this title has earned the #10 position in the best deals for games like Kerbal Space Program.
6.9
493
191
-85%
9.73€
1.46€
Free games like Kerbal Space Program on Steam
Check out this fantastic list of free-to-play games like Kerbal Space Program you can enjoy on Steam right now, updated on April 30th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Kerbal Space Program.
1. Endless Sky
Similarity 59% Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters. Endless Sky is a space, free to play and open world game developed and published by Michael Zahniser. Released on October 30th 2015 has received 6,604 reviews of which 6,096 were positive and 508 were negative resulting in a rating of 8.9 out of 10. With 129 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Kerbal Space Program.
8.9
6,096
508
129
players
2. The Powder Toy
Similarity 56% The Powder Toy is a classic physics sandbox game, which simulates air pressure and velocity, heat, gravity and a countless number of interactions between different substances The Powder Toy is a simulation, sandbox and 2d game developed and published by The Powder Toy Team. Released on June 14th 2024 has received 1,775 reviews of which 1,750 were positive and 25 were negative resulting in an impressive rating of 9.4 out of 10. The game currently holds the #2 spot among the most played free games like Kerbal Space Program.
9.4
1,750
25
93
players
3. Destination Sol
Similarity 55% Pilot your ship in the seamless open world made of space, planets, and more. Find new ships and equipment, find allies and beat all the enemies in this open source space shooter! Destination Sol is a free to play, rpg and action game developed and published by MovingBlocks. Released on February 05th 2015 has received 1,355 reviews of which 1,070 were positive and 285 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #3 spot among the most played free games like Kerbal Space Program.
7.6
1,070
285
2
players
4. InMind VR
Similarity 60% InMind is a short scientific adventure with arcade elements designed for the Oculus VR. Submerge into the microworld and experience the miracles of the human mind. InMind VR is a vr, free to play and indie game developed and published by Luden.io. Released on January 19th 2015 has received 433 reviews of which 340 were positive and 93 were negative resulting in a rating of 7.4 out of 10. The game currently holds the #4 spot among the most played free games like Kerbal Space Program.
7.4
340
93