Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
All Reviews:
Mostly Positive (95) - 77% of the 95 user reviews for this game are positive.
Release Date:
Feb 20, 2020

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“First of all, space simulators are usually greatly benefit from the Early Access. It is very hard to build such game from the ground up without constant iterations and community feedback, because of size of scope and complexity of the game systems.

Secondly, the cutting-edge technologies are used in this game (no, not RTX but it is pretty easy to add), which are a bit unstable at this moment. So, it needs to be checked, whether they will work on different user configurations before the full release.

And last, but not least, I plan to release several major content updates, finalizing and polishing some game mechanics. It would be great if the community of the game will help me to do this.”

Approximately how long will this game be in Early Access?

“I will continue to work on this game as long as the community is interested in it. The speed of development will depend greatly on the success of the game. I expect years will pass when it will be finished. But if I will be able to hire more developers, the development time could be reduced.”

How is the full version planned to differ from the Early Access version?

“You can find detailed roadmap on the Steam forum. I plan to add two more game modes (survival and story), spaceport building and all main celestial bodies of the Solar system. And obviously, much more rocket parts! Also it would be great to implement some missing visual systems, like clouds, rivers and vegetation on the planets.”

What is the current state of the Early Access version?

“All main game systems, like orbital mechanics, planet generation, rocket construction and space flights are established. These systems are pretty stable. But the game has non-critical bugs, missing some quality of life features (like symmetry tools and bulk operations in rocket construction) and not as much content as I would like. For more details you can look at our roadmap.”

Will the game be priced differently during and after Early Access?

“The price of the game will be gradually increased two times with the release of major updates in Early Access.”

How are you planning on involving the Community in your development process?

“I’d like to hear any feedback, opinions and ideas on the project, especially recrorded videos with your playthrough, so feel free to express yourself by any means available. You can leave it on the Steam Forums or Discord channel and get the latest news on Twitter, Youtube and Steam Group.”
Read more
See all discussions

Report bugs and leave feedback for this game on the discussion boards

About This Game

"Rocket Science" is a declassified Soviet Union space program that aims to conquer Mars and the entire Solar system. According to official documents that have been unearthed, it consists of the following main stages:

===== Source =====

Stage 1. From 20 February 2000 [Operational]
Transfer to a designated person control of an abandoned Soviet cosmodrome located at the coordinates 50° 35' 13" N and 130° 23' 50" E ... as well as all the stockpiled spacecraft components, so that assembly and launchpad operations can be carried out in order to find optimal configurations for putting cargo and satellites into Earth and near-Earth orbit.

Stage 2. [Approval in progress]
Organize the building of a new-generation space center on the cosmodrome site. Restrict the construction of surface buildings so as to ensure the facility's security and secrecy. Give the go-ahead for the construction and commissioning of underground facilities. Transfer the facility from state financing to full self-sufficiency.

Stage 3. [At the planning stage]
Conduct R&D on super-heavy rockets capable of delivering equipment, cargo and people onto the Martian surface. Start building an extraterrestrial base and ensure the continuous flow of supplies to it.

Stage 4. [Data corrupted]

===== End Source =====

Take part in the first stage of the space program right now!



Assemble spacecraft and rockets from over 30 available parts with varying physical parameters. The parts can be joined together through a system of connectors and slots. This significantly reduces the number of non-viable configurations without limiting the flights of your imagination.


Put the rockets under your direct control or make flight plans and launch automated missions. But remember that going into orbit around a real planet is far more complicated than orbiting an asteroid.


You've never been on Everest? Have you dreamed of visiting the Moon? Just send a spacecraft there and enjoy the view you'll get.

Additional game features

  • The Solar system and celestial bodies are modeled to scale (Earth, the Moon, Mars, Phobos and Diemos are currently available for exploration).
  • A physically accurate simulation of the Earth's atmosphere with a seamless transition into space will make your game session unforgettable.
  • The planets' surfaces are generated from NASA elevation maps, and a procedural approach control is used to add fine detail.
  • Realistic rocket physics and orbital mechanics.
  • Speeding up of time by a maximum factor of 10 even while the engines are running.
  • More than 75 parts are available to design your dream spacecraft: command modules, engines and fuel tanks, control and orientation systems, structural elements, decouplers and docking ports, as well as batteries and solar panels.
  • Detailed configuration of some rocket parts and the ability to change their physical parameters.
  • The engines use real fuel pairs rather than an abstract "fuel" and "oxidizer".

And much more in future updates. You can examine the development plan in the Early Access section of the game page.

System Requirements

    • Requires a 64-bit processor and operating system
    • OS: Windows 8 (latest Service Pack) / Windows 10
    • Processor: Intel Core i5, 4 cores or more, 2.7 GHz
    • Memory: 8 GB RAM
    • Graphics: GeForce GTX 970 or better
    • DirectX: Version 11
    • Storage: 9 GB available space
    • Additional Notes: Mouse and Keyboard
    • Requires a 64-bit processor and operating system
    • OS: Windows 10
    • Processor: Intel Core i7, 6 cores, 3.3 GHz
    • Memory: 12 GB RAM
    • Graphics: GeForce GTX 1650 or better
    • DirectX: Version 11
    • Storage: 11 GB available space
    • Additional Notes: Mouse and Keyboard

What Curators Say

8 Curators have reviewed this product. Click here to see them.

Customer reviews

Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Filter reviews by the user's playtime when the review was written:

No minimum to No maximum
Display As:
Show graph
Hide graph
Excluding Off-topic Review Activity
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...