Note: This game is a Early Access title

THE YEAR IS 2034. It’s been five years since the International Space Station was deorbited. Space programs the world over have faltered. Against all odds, an unprecedented “All Nations Space Coalition” is formed around a shared desire to rebuild mankind’s permanent presence in space, and rekindle the space race. Who will lead this mission? You!

STABLE ORBIT is a space station simulation game out now in Early Access on PC, macOS and Linux. Assume the role of station commander and build the next space station!


Stable Orbit is developed by Jim Offerman, Lead PC Programmer of Deus Ex: Humand Revolution and Tomb Raider, and published by Green Man Gaming.


Development Roadmap

Stable Orbit is an Early Access title, meaning that the game is still in active development. The roadmap below outlines what is available in the game now and which features are still in development.

Zenith (Stable Orbit 1.0) IN DEVELOPMENT

Orbital Management: You will be required to strategically place - and fire - thruster modules in order to maintain a stable orbit of your station. For more casual players, an automatic mode is planned that will only require you to place thrusters to keep the station in orbit. However, if you want to increase the difficulty, you can turn this off and try to maintain orbit manually!

You'll also be able to choose the orbital path of your station. For maximum realism, you might want to stick with a path similar to the ISS, but wouldn't it also be cool to fly over where you live?

Disasters & Events: A lot of things can go wrong in space. Meteor strikes, airlock failures, electrical fires and much more. This update will introduce various disasters and other events to increase the challenge of keeping a station in orbit!

Advanced Truss Structures: New truss structures will enable you to build curved and circular station structures. Additionally, gimbal modules enable parts of the station to spin and generate artificial gravity for your crew.

Pressurized Mechanics: With this system, crew members will no longer be able to travel freely between pressurized modules (Quarters, labs, etc) that aren't connected to each other. You will still be able to construct unconnected 'islands' of pressurized modules, but will need to add airlocks in order for crew to be able to travel from one set of modules to the next.

Dynamic Weather System: A simple cloud texture will not do! There will be an evolving weather system with dynamic clouds. However, it won't just be a pretty effect - if there's a storm on earth, that'll stop supply pods from getting to your station!

Sandbox Mode: Sometimes you don't want to follow the rules, worry about the crew, and just want to create the mother of all space stations. For those occasions, there'll be a sandbox mode where you can build whatever you want.

Perihelion RELEASED

Science: The third update, Perihelion, added another new gameplay mechanic: laboratories no longer produce money directly, but instead players can apply the research capacity offered by their labs to fulfill (commercial) research contracts that earn them money for the expansion and upkeep of their stations or offer other rewards in the form of unlocking new modules and upgrades

Waste: With Perihelion, waste became another problem for players to manage. Build up of waste will now affect living conditions and the health of your crew. However, recycling of waste allows players to reclaim valuable resources.


Graphics: Update #2 introduced new intricately detailed designs for all station modules, featuring elements based on real space technologies like grapple fixtures and the common berthing mechanism. Rendering has been optimized for Vector and the new modules have dynamic level of detail for increased performance. Vector also added a new 'Node' module, which enables players to create pressurized connections between crew modules.

Electrolysis RELEASED

Storage Management: The first Early Access update for Stable Orbit, expanded upon resource management and introduced advanced storage management to increase difficulty. Additionally, the Electrolysis update changed the way your crew behaves - they'll now work in shifts, and won't board the station if it's not safe to do so.

With this update, Supply pods no longer provide oxygen, and you'll now have to construct oxygen generator modules in order to refuel your station's air supply.


Initial Modules: These are the basic resource components of your space station! The Shuttle Dock will allow astronauts and supplies to be delivered to your station; Solar Array's will provide the station with power; while Radiators will prevent the station from overheating.

Construction: Truss structures allow you to expand your station, and shape it to exactly how you want it to be constructed. We've seen some great screenshots from players so far, and we can't wait to see how crazy it'll get with future updates!

Resource Management: Keeping everything in working order in space can be quite a challenge! Currently, you need to manage oxygen, power, heat, food and water as well as keeping everyone alive, and this will evolve as the game development progresses

System Requirements

Steam Codalyn Green Man Gaming Publishing Creative Industries Fund NL