Top similar games like Kerbal Space Program:
Kerbal Space Program $39.99
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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Space Shooter 24$0.99
Join the war in the depths of space with Space Shooter 24! Customizable ships, realistic graphics, and breathtaking action await you. Take action now to save the galaxy.

WarpVector$4.99
WarpVector is an immersive sci-fi roguelike built around space exploration, combat, and navigation. Explore the remnants of an ancient civilization, fend off marauding space pirates, and find a way to save your home planet.

Dude Simulator Six$4.99
Dude Simulator Six is an open world sandbox game. A mortal danger looms over humanity. The planet was invaded by representatives of a distant planetary system.

Space Battle VR$9.99
Space Battle VR is an action shooter set in space. It supports VR controllers to give you a real feel how it is to be a spaceship pilot. You can truly feel the cosmos with this game. Jump into an awesome adventure, help mankind, win a war, bring freedom and happiness to the universe. People need you!

Game Dev Tycoon$9.99
In Game Dev Tycoon you replay the history of the gaming industry by starting your own video game development company in the 80s. Create best selling games. Research new technologies and invent new game types. Become the leader of the market and gain worldwide fans.

InCell VRFREE
InCell is an action/racing VR game with a bit of strategy and science thrown into the mix. You'll take an exciting journey inside the highly unusual micro world of human cell and stop the virus advance. The game is focused on VR but you can play just fine without a set.

Crashlands$14.99
Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.

Oxygen Not Included$24.99
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.

Habitat$14.99
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.

Ocean Punk$11.99
Explore a fantasy ocean-punk world, braving the deep with steam-powered marvels. Discover mysterious underwater treasures, but scarcity and ecological crises test survival. Rise, build, confront foes in this pixel-art ocean survival journey!

Total Tank Simulator$19.99
Commander in the ranks. Soldier at heart. Choose a faction and deploy and command your army into massive physics-driven WWII battles to the last man standing. Destroy everything on sight with an insane amount of units that will behave tactically.

Viscera Cleanup Detail$12.99
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.

Sapiens$24.99
Create your own prehistoric civilization and lead your tribe in a world you shape. Start with nothing, build towns and industry, and advance through thousands of years of technological breakthroughs in this intimate yet expansive colony sim.

Rebel Galaxy$19.99
Rebel Galaxy is a swashbuckling space adventure, with action-packed combat, exploration, discovery, trade, and “negotiation” with the outlandish denizens at the edge of the known universe.

Satisfactory$39.99
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!

Bridge! 3$12.99
In Bridge! 3 you have the opportunity to build your bridges and their carrying capacity to the utmost! Let your creativity run as a bridge builder and take the challenge to prove yourself as a true master of bridge building.

Coal Mining Simulator$14.99
Welcome to the world of Coal Mining! Start with almost nothing and get to the top - develop your mine, sell coal, buy new machines and avoid dangers in this sandbox simulator. Take control of numerous mining machines. Destroy, mine, drill, transport and blow things up.

Fun with Ragdolls: The Game$14.99
Become a ragdoll and create your own environments in Sandbox Mode, explore worlds created by others, or just flop around your destructible sets! Fun with Ragdolls: The Game lets you enjoy everything you love about ragdolls!

Bus World$19.99
Bus World is a game about passenger transportations in various conditions, starting from standard days of a bus driver and ending with rescuing people who suffered from disasters.

Ragdoll Party Online$4.99
Create your own level with your friends online in the sandbox mode, play the mini-games, ragdoll, drive a car, fly with a Jetpack, fart to go higher, throw grenades. Access more than 45 items to build your own level.

Hyperbolica$12.99
Hyperbolica is a whimsical Non-Euclidean adventure with mind-bending worlds full of games, puzzles, mazes, and secrets! Immerse yourself in reality-warping geometries where lines can never be parallel, horizons are curved, and space grows exponentially.

Microcosmum 2$14.99
A relaxing strategy game featuring unconventional gameplay. Your objectives include development, evolution, border expansion and protection of your hive.

Coal Mining Simulator: PrologueFREE
Welcome to the world of Coal Mining! Start with almost nothing and get to the top - develop your mine, sell coal, buy new machines and avoid dangers in this sandbox simulator. Take control of numerous mining machines. Destroy, mine, drill, transport and blow things up.

Ratopia$19.99
Ratopia is a new game that has combined elements of both strategic survival and city building. With plenty of content available, and more planned, enjoy a vast world to adventure and populate with citizens! Build your own economical system to sustain your ideal city of Ratopia.

Interkosmos 2000$19.99
Go to space. Save the Future. Try not to Die. Welcome (back) to the world of Interkosmos for an even wilder, weirder and more wondrous adventure.

Entangled$0.99
Entangled is a physics puzzle game revolving around grappling gun mechanics. You are immersed in a colorful environment while being entranced by a relaxing space ambient soundtrack. It is challenging, but extremely rewarding.

Ragdolls Playground: The Sandbox$4.99
RAGDOLLS PLAYGROUND is a simple Physics Sandbox game where you can Build, Paint, Destroy, Drive cars, Simulate Wars or crush ragdolls in a large open space and watch them fight with the wobbliest physics system. There aren't any predefined aims or goals. We give you the tools and leave you to play.

InMind VRFREE
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.

Wrongworld$6.99
Crash-landed on a surreal, low-poly world filled with freakish inhabitants, choose between permadeath and non-permadeath modes and embark on an epic (and ridiculous) survival adventure. Will you manage to stay alive as you unravel the mysteries of Wrongworld and search for a way home?

Dude Simulator 3$4.99
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.

Don't Starve$9.99
Don’t Starve is an uncompromising wilderness survival game full of science and magic. Enter a strange and unexplored world full of strange creatures, dangers, and surprises. Gather resources to craft items and structures that match your survival style.

Tiny Bridge: Ratventure$1.99
This mind-bending game will challenge you to create complex structures to get your woodland creatures over vast chasms. In a bridge-builder first, you'll guide your creatures and construct your bridges in real time. Use the weight of various creatures to balance your structures as you build them.

Ice Caves of EuropaFREE
Ice Caves of Europa will challenge your reflexes and your mind, blending free-flowing precision flight with confronting science fiction ideas about the nature of humanity. An inquisitive flying robot exploring the hazardous caves beneath Europa stumbles upon a sinister interplanetary conspiracy.

Dude Simulator$4.99
Dude Simulator is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.

Prehistoric Kingdom$29.99
Take control of limitless power in Prehistoric Kingdom to build, manage and grow the ultimate zoo for extinct animals.

Dude Simulator 2$4.99
Dude Simulator 2 is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.

DEEEER Simulator: Your Average Everyday Deer Game$14.99
Put simply, DEEEER Simulator is a “Slow-Life Town Destruction Game”. You can spend your days enjoying a nice, relaxed frolic here and there together with the other animals around town, or you can choose to relieve some stress and absolutely destroy the town and everything in it.

Grand Dude Simulator$4.99
Grand Dude Simulator is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing.

Try To Survive$0.99
Today is a special day. The government decided to make an extraordinary and unpredictable experiment. Its objective is to learn how people are going to behave and what they will do if given full freedom and thus allowed to do just whatever they want for a period of 24 hours.

Homeless Simulator$0.99
Homeless Simulator is a homeless person simulator. Homeless persons are those who find themselves living on the streets because of family conflicts, somebody’s fraud, loss of the job or health problems. They are those who need help.

How To Be A Real Dude$4.99
How To Be A Real Dude is an open world sandbox game. This is a life simulator. The main objective is to enjoy what you are doing. You can do whatever you want.

Homeless Simulator 2$0.99
Homeless Simulator 2 is a homeless person simulator. Homeless persons are those who find themselves living on the streets because of family conflicts, somebody’s fraud, loss of the job or health problems. They are those who need help.

Tales of Tomorrow: Experiment$9.99
ToT: Experiment is a sci-fi short story game set on a remote ship wandering through space. Without any memories or recollection of his past our hero is tasked by the ship AI - AR.I.A. to perform daily tasks, that will help to maintain the ship.

Streamer Shall Not Pass!$199.99
Asynchronous network game in which the creator of the room with the help of other players must go from beginning to end.You can also play alone.

Ludus$9.99
Build the best ludus in the world! and survive in ancient Rome.

Breakwaters: Crystal Tides$19.99
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.

Box Nation [] Lets Go Build and Fight$199.99
Box Nation [ ] is a sandbox kind of game. In this box world, you can become a leader of your own nation. Your main goal in the game is to create and develop your nation of boxes.

The Astronomy Game$4.99
Explore the depths of outer space and experience the wonders of astronomy! Go on an adventure that will take you through the cosmos in Story Mode. Your lab partner's been kidnapped, and you must travel to an alien fortress to rescue him. Endlessly test your astronomy skills in Trivia Battle Mode.

BLINNK and the Vacuum of Space$9.99
Welcome to deep space station Norpopolis – where a batch of escaped critters are causing chaos! Grab your Vacuumizer 5000 and go undercover with BLINNK the robot to catch them all. VR for autism.

Medusa Frontier$0.99
Medusa Frontier is a budget sci-fi survival game being developed with OpenGL & C++. Gameplay is currently limited to resource gathering and base building on a 1k terrain map.

Star Horizon$9.99
Experience fast action, thrilling levels, spectacular explosions and lots of pew-pew-pew. Star Horizon is a reboot for the on-rails space shooter genre.