Kerbal Space Program

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.

Tiny Space Academy is a 2D space sim where you can grow your own space agency and explore our solar system with rockets you design! Learn basic orbital mechanics, run science experiments, and get your astronauts back to Earth safely.

Space Station Continuum is a building & management sim inspired by the past, present, and future of humans in space.

You are the captain of a mining ship watching your home world being destroyed by a large asteroid. Your only hope is to gather resources, create new technologies and set off on a long journey into the deep space to search of a new home.

Build a small mining colony in deep space and defend it from alien invaders as you extract precious minerals from asteroids in Astro Mining.

The year is 2023, and you are a head of private space launch company. You are driven by the only ambition: to reach the stars. Build rockets from wide variety of components, improve them, study new technologies to forge more and more powerful spacecraft.

Design, build and control your own space station. Mission command and control is in your hands and only careful planning and vigilant supervision will keep your crew and space station safe.

Create the Starship of your dreams, explore a vast and vivid world and jump into epic space battles. Experience a truly unique and powerful building engine where your imagination is the limit. Welcome to the next evolution in Space Sandbox gaming!

In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.

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.

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.

Build, Explore, Fight. Build a ship of your imagination, explore the vast cosmos, and fight for your stake in the galaxy.

Mine asteroids, salvage space debris, build space ships and stations, manage fuel and energy, trade goods, performs missions and fight against enemies in large open world with realistic 2D physics based on orbital mechanics or in alternative, more classic game mode.

Operate the Starship space launch system and learn how to catch a rocket to understand what it takes to colonize Mars in this ever-evolving simulation of SpaceX Starbase Texas.

Play as an A.I tasked with helping mankind explore the vastness of space. Customize your ship, recruit a crew, battle alien vessels, research new technology and explore randomly generated universes.

Take on the role of a spaceship captain. Explore new worlds, and engage in intense ship-to-ship battles. Develop unique battle tactics, upgrade your ship, and recruit crew members as you fight for peace or piracy.

SimpleRockets is back, but now it's fully 3D! Build any rocket, airplane, and anything you can think of with highly customizable parts. Explore 3D planets and make your own. Share your creations online. We are bringing it to Early Access while we work on our Campaign Mode and other key features.

🚀 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!

NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.

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.