Games like Kerbal Space Program on Steam
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Prehistoric Kingdom
Take on the role of park manager and design the ultimate zoo for nature's greatest creations.
Fireworks Mania - An Explosive Simulator
FIREWORKS MANIA is a small casual explosive simulator game where you play around with fireworks, create beautiful firework shows or just blow stuff up.
Car Mechanic Simulator 2021
Work your way to a service empire. Get your hands dirty in a highly realistic simulation game that pays major attention to details. Pay a visit to a new Auction house and buy cars in various conditions. Expand your range of services by investing in a new work space and equipment.
The Sims™ 3
The Sims 3: Create the perfect world with full customization at your fingertips. Refine personalities and help fulfill destinies.
Voxel Turf
Voxel Turf is a block based urban sandbox. Build cities, blow up buildings, complete missions or fight for territory. Build a real estate empire, or perhaps just drive around and blow stuff up. Its your choice!
Heavenly Bodies
Wrangle the hands and arms of a 1970s space cosmonaut and push, pull and twist your way through an increasingly precarious range of physically simulated stellar scenarios, where without gravity, nothing is still, nothing is secure, and nothing is simple.
Tea Party Simulator 2015™
Ever wanted to be a tea party extraordinaire? Well now you can. Each new level brings it's own challenges you must overcome on your quest to become the ultimate tea party master. Comes with the original Tea Party Mode and now a Mode 2 (after beating all the levels), for a whole new experience!
Scavenger SV-4
Scavenger SV-4 is a highly replayable atmospheric first-person science fiction game. Part simulator, part roguelike, it has elements of action, combat, resource management, and a dash of horror. It is not quite like any game you have played before.
Sol 0: Mars Colonization
Sol 0 is a real time strategy game where you establish the first Martian colony. From the first human footprints on Martian soil to a thriving and self-sustaining colony, Sol 0 imagines a near future using technology that could be available within the next few decades.
Internet Cafe Evolution
This is a business simulation + construction game. It tells the evolution history of Internet cafes that began in the 1990s, and imagines the future of internet cafes. There are also some small emotional stories.
Bridge Constructor Medieval
Bridge Constructor Medieval turns back the clock a few centuries to the time of knights and castles. Build sturdy bridges to supply your city with provisions - or cunningly constructed bridges that collapse under the weight of attacking troops, sending the horde of enemies into the abyss below.
Tyto Ecology
Build your biome! With an empty biodome as your canvas, add plants and animals from three different ecosystems. Observe interactions like hunting, blooming, and even decomposing! Will your biodome last for decades, or will it experience a total ecosystem collapse? You’re in control!
Interplanetary: Enhanced Edition
In this turn-based strategic artillery game, players wage interplanetary wars by developing their home planets and firing massive barrages through the unpredictable gravity fields of the solar system.
The Spatials
It's the year 5781 -- and you have been chosen to build and lead a space station in a wild corner of the galaxy! Attract visitors and explore hundreds of planets to fund your station.
NoLimits 2 Roller Coaster Simulation
NoLimits 2 is the ultimate roller coaster simulation that lets you experience authentic roller coaster thrills. Climb into the world's most famous roller coasters and experience the excitement in real time. Or design a new roller coaster that is engineered to your specifications.
FlowScape
In FlowScape you can create your own nature scene simply by painting. Choose from 20 landscapes and more than 300 models to create your own little paradise by painting trees, changing the sky, rotating the sun, adding sound effects and adjusting your camera for that perfect photo.
Cities: Skylines
Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience.
Worlds Adrift Island Creator
Worlds Adrift is a Community-Crafted MMO: each and every island has been crafted by our playerbase. With the free Island Creator tool, this is your chance to create your own adventure for the community to experience. A crumbling ruin, or a teeming jungle, help expand the edges of Foundation ever further!
Gold Mining Simulator
Become a gold miner. Work hard, dig deep, explore the world, and you’ll become the wealthiest person in Alaska. Use a variety of specialist machines to find as much gold as you can.
PC Building Simulator
Build and grow your very own computer repair enterprise as you learn to diagnose, fix and build PCs. With real-world licensed components and comprehensive hardware and software simulation, you can plan and bring your ultimate PC to life.
Prison Architect
Only the world’s most ruthless Warden can contain the world’s most ruthless inmates. Design and develop your personalized penitentiary in Prison Architect.
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.
Stellar Warfare
Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!