Games like Space Simulation Toolkit on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Space Simulation Toolkit are available at the bottom of the page.
Filters & Lists
Universe Sandbox
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.
Rover Mechanic Simulator
As an Engineer - crew member of one of the first Mars colonies - you are responsible for repairing and maintaining Mars Rovers. In this advanced simulator you will learn the internal details of various Mars Rovers and their components.
Wobbledogs
A 3D pet simulation where you raise your own personal hive of mutating dogs, physically simulated all the way down to their guts! Wobbledogs is a casual and chill sandbox for players of all ages who want to care for their very own virtual pets in a surprising, unique, and stress-free environment.
When Ski Lifts Go Wrong
Ride into a hilarious construction puzzler; packed with over 100 creative physics-based challenges, sports and bloody disasters! Build contraptions to help every passenger reach their destination. Enjoy the sports by controlling your riders away from (or towards if you feel like it) peril!
Space Haven
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.
Space Engineers
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.
Marble Mayhem: Fragile Ball
Devilishly difficult but insanely rewarding physics puzzler. Play through 85 levels of diverse and ingenious physics-based challenges.
Farlands
Congratulations, you’ve bought your own planet! An agrarian rock at the edge of the galaxy that, for some reason, was practically being given away for free. So the time has come to leave your hectic, stressful life in an overcrowded metropolis for a more rural and rewarding life.
Astro Colony
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.
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!Most played games like Space Simulation Toolkit on Steam
Take a look at the top games like Space Simulation Toolkit that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Space Engineers
Similarity 55% 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. The game has hit the top spot as the #1 most played game like Space Simulation Toolkit, thanks to its 4,402 peak concurrent players over the last day.
8.7
116,777
15,101
4,402
players
2. Kerbal Space Program
Similarity 58% 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. Kerbal Space Program is a space, simulation and sandbox game developed by Squad and published by Private Division. Released on April 27th 2015 has received 126,522 reviews of which 120,440 were positive and 6,082 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 1,958 players online at once in the last 24 hours, this game is currently ranked #2 among games like Space Simulation Toolkit based on player count.
9.4
120,440
6,082
1,958
players
3. Galaxy Idle Clicker
Similarity 59% Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe! Galaxy Idle Clicker is a idler, casual and clicker game developed and published by Soehnle. Released on July 18th 2024 has received 634 reviews of which 481 were positive and 153 were negative resulting in a rating of 7.2 out of 10. While seeing 1,275 players online at once in the last 24 hours, this game is currently ranked #3 among games like Space Simulation Toolkit based on player count.
7.2
481
153
1,275
players
4. Automation - The Car Company Tycoon Game
Similarity 54% Make your dream cars a reality with Automation’s unparalleled car and engine design tools. Gain a competitive edge through smart engineering and business decisions to help you build an automotive empire. Will you become an industry leader, or just a footnote in automotive history? Automation - The Car Company Tycoon Game is a simulation, management and building game developed and published by Camshaft Software Ltd. Released on March 12th 2015 has received 14,238 reviews of which 13,297 were positive and 941 were negative resulting in an impressive rating of 9.1 out of 10. With 555 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Space Simulation Toolkit.
9.1
13,297
941
555
players
5. Space Haven
Similarity 55% 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. Space Haven is a base-building, space and colony sim game developed and published by Bugbyte Ltd.. Released on May 21st 2020 has received 8,901 reviews of which 7,688 were positive and 1,213 were negative resulting in a rating of 8.4 out of 10. With 506 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Space Simulation Toolkit.
8.4
7,688
1,213
506
players
6. Universe Sandbox
Similarity 68% 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. Universe Sandbox is a sandbox, space and simulation game developed and published by Giant Army. Released on August 24th 2015 has received 27,055 reviews of which 26,078 were positive and 977 were negative resulting in an impressive rating of 9.4 out of 10. With 428 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Space Simulation Toolkit.
9.4
26,078
977
428
players
7. Cosmoteer: Starship Architect & Commander
Similarity 53% 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! Cosmoteer: Starship Architect & Commander is a sci-fi, singleplayer and 2d game developed and published by Walternate Realities. Released on October 24th 2022 has received 11,004 reviews of which 10,466 were positive and 538 were negative resulting in an impressive rating of 9.2 out of 10. With 373 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Space Simulation Toolkit.
9.2
10,466
538
373
players
8. Idle Spiral
Similarity 54% This is a beautiful "Idle", "Incremental" game based on spirals and mathematics. Your goal is to make the spiral grow farther and farther from the origin. The game is very simple, but it is very deep and can be enjoyed for a long time! Idle Spiral is a idler, simulation and clicker game developed by Idle System, Inc. and Yayu and published by Idle System and Inc.. Released on April 30th 2022 has received 1,744 reviews of which 1,416 were positive and 328 were negative resulting in a rating of 7.8 out of 10. With 233 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Space Simulation Toolkit.
7.8
1,416
328
233
players
9. SpaceEngine
Similarity 56% The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas. SpaceEngine is a early access, open world and casual game developed and published by Cosmographic Software. Released on June 11th 2019 has received 12,422 reviews of which 11,917 were positive and 505 were negative resulting in an impressive rating of 9.3 out of 10. With 130 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Space Simulation Toolkit.
9.3
11,917
505
130
players
10. Endless Sky
Similarity 58% 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 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Space Simulation Toolkit.
8.9
6,096
508
129
players
Best deals on games like Space Simulation Toolkit on Steam
Discover fantastic savings with the best discounts on a variety of games like Space Simulation Toolkit 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 Space Simulation Toolkit.
1. When Ski Lifts Go Wrong
Similarity 56% Ride into a hilarious construction puzzler; packed with over 100 creative physics-based challenges, sports and bloody disasters! Build contraptions to help every passenger reach their destination. Enjoy the sports by controlling your riders away from (or towards if you feel like it) peril! When Ski Lifts Go Wrong is a simulation, building and indie game developed by Hugecalf Studios and published by Curve Games. Released on January 23rd 2019 has received 842 reviews of which 731 were positive and 111 were negative resulting in a rating of 8.2 out of 10. Featuring a massive 93% discount, this game currently holds the #1 spot in the best deals for games like Space Simulation Toolkit.
8.2
731
111
-93%
14.29€
1.00€
2. When Ski Lifts Go Wrong
Similarity 56% Ride into a hilarious construction puzzler; packed with over 100 creative physics-based challenges, sports and bloody disasters! Build contraptions to help every passenger reach their destination. Enjoy the sports by controlling your riders away from (or towards if you feel like it) peril! When Ski Lifts Go Wrong is a game developed and published by . Released on January 23rd 2019 has received 842 reviews of which 731 were positive and 111 were negative resulting in a rating of 8.2 out of 10. Thanks to its incredible 93% discount, this game is now the #2 best deal in games like Space Simulation Toolkit.
8.2
731
111
-93%
14.29€
1.00€
3. Wobbledogs
Similarity 56% A 3D pet simulation where you raise your own personal hive of mutating dogs, physically simulated all the way down to their guts! Wobbledogs is a casual and chill sandbox for players of all ages who want to care for their very own virtual pets in a surprising, unique, and stress-free environment. Wobbledogs is a dog, wholesome and cute game developed by Animal Uprising and published by Secret Mode. Released on March 15th 2022 has received 11,954 reviews of which 11,738 were positive and 216 were negative resulting in an impressive rating of 9.5 out of 10. Thanks to its incredible 86% discount, this game is now the #3 best deal in games like Space Simulation Toolkit.
9.5
11,738
216
-86%
20.00€
2.80€
4. Rover Mechanic Simulator
Similarity 58% As an Engineer - crew member of one of the first Mars colonies - you are responsible for repairing and maintaining Mars Rovers. In this advanced simulator you will learn the internal details of various Mars Rovers and their components. Rover Mechanic Simulator is a simulation, indie and building game developed by ▲ Pyramid Games and published by Pyramid Games S.A. and PlayWay S.A.. Released on November 12th 2020 has received 632 reviews of which 485 were positive and 147 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 75% discount, this title has earned the #4 position in the best deals for games like Space Simulation Toolkit.
7.3
485
147
-75%
11.79€
2.94€
5. Marble Mayhem: Fragile Ball
Similarity 54% Devilishly difficult but insanely rewarding physics puzzler. Play through 85 levels of diverse and ingenious physics-based challenges. Marble Mayhem: Fragile Ball is a casual, indie and puzzle game developed by Bimboosoft Co. and Ltd. and published by Senpai Studios. Released on July 07th 2015 has received 1,095 reviews of which 738 were positive and 357 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 72% discount, this title has earned the #5 position in the best deals for games like Space Simulation Toolkit.
6.5
738
357
-72%
1.99€
0.55€
6. Solar 2
Similarity 56% Dynamic abstract sandbox universe. Changes and evolves as you do. Solar 2 is a space, indie and casual game developed and published by Murudai. Released on June 17th 2011 has received 2,129 reviews of which 1,939 were positive and 190 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 66% discount, this title has earned the #6 position in the best deals for games like Space Simulation Toolkit.
8.7
1,939
190
-66%
9.00€
3.06€
7. Universe Sandbox
Similarity 68% 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. Universe Sandbox is a sandbox, space and simulation game developed and published by Giant Army. Released on August 24th 2015 has received 27,055 reviews of which 26,078 were positive and 977 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a significant 55% discount, this title has earned the #7 position in the best deals for games like Space Simulation Toolkit.
9.4
26,078
977
-55%
28.71€
12.92€
8. Space Engineers
Similarity 55% 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. Currently offered at a significant 55% discount, this title has earned the #8 position in the best deals for games like Space Simulation Toolkit.
8.7
116,777
15,101
-55%
16.98€
7.64€
9. Space Haven
Similarity 55% 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. Space Haven is a base-building, space and colony sim game developed and published by Bugbyte Ltd.. Released on May 21st 2020 has received 8,901 reviews of which 7,688 were positive and 1,213 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 54% discount, this title has earned the #9 position in the best deals for games like Space Simulation Toolkit.
8.4
7,688
1,213
-54%
22.11€
10.17€
10. Space Engineers
Similarity 55% 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 game developed and published by . 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. Currently offered at a significant 55% discount, this title has earned the #10 position in the best deals for games like Space Simulation Toolkit.
8.7
116,777
15,101
-55%
16.98€
7.64€
Free games like Space Simulation Toolkit on Steam
Check out this fantastic list of free-to-play games like Space Simulation Toolkit 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 Space Simulation Toolkit.
1. Galaxy Idle Clicker
Similarity 59% Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe! Galaxy Idle Clicker is a idler, casual and clicker game developed and published by Soehnle. Released on July 18th 2024 has received 634 reviews of which 481 were positive and 153 were negative resulting in a rating of 7.2 out of 10. With 1,275 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Space Simulation Toolkit.
7.2
481
153
1,275
players
2. Idle Spiral
Similarity 54% This is a beautiful "Idle", "Incremental" game based on spirals and mathematics. Your goal is to make the spiral grow farther and farther from the origin. The game is very simple, but it is very deep and can be enjoyed for a long time! Idle Spiral is a idler, simulation and clicker game developed by Idle System, Inc. and Yayu and published by Idle System and Inc.. Released on April 30th 2022 has received 1,744 reviews of which 1,416 were positive and 328 were negative resulting in a rating of 7.8 out of 10. Thanks to its free to play tag and a daily player base of 233, this game has secured the #2 spot in the ranking of free games like Space Simulation Toolkit.
7.8
1,416
328
233
players
3. Endless Sky
Similarity 58% 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. Thanks to its free to play tag and a daily player base of 129, this game has secured the #3 spot in the ranking of free games like Space Simulation Toolkit.
8.9
6,096
508
129
players
4. Learn to Fly 3
Similarity 58% Build your spaceship from scratch, earn funds and invest them into building a bigger, better spaceship as you try and fly your way up to space! Learn to Fly 3 is a free to play, casual and physics game developed and published by Light Bringer Games inc.. Released on May 12th 2017 has received 10,315 reviews of which 9,759 were positive and 556 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #4 spot among the most played free games like Space Simulation Toolkit.
9.2
9,759
556
87
players
5. Mash Box
Similarity 56% Mash Box is a prototype sandbox game from an indie team, offering endless creative possibilities. Be part of its evolution with regular updates and help shape the tech foundation for future games. Dive in and influence the development of something special! Mash Box is a casual, simulation and sports game developed and published by Mash Games. Released on October 17th 2024 has received 526 reviews of which 490 were positive and 36 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #5 spot among the most played free games like Space Simulation Toolkit.
8.7
490
36
32
players
6. Durka Simulator
Similarity 58% A visual novel set in a universe where the orderlies are trying to take over our planet. Durka Simulator is a conversation, singleplayer and free to play game developed by Crucial Experiment and published by Unknown Softwares Lab. Released on March 21st 2023 has received 1,741 reviews of which 1,636 were positive and 105 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #6 spot among the most played free games like Space Simulation Toolkit.
8.9
1,636
105
1
players