Skip to content
Geeky Alien
Kepler Project

Screenshots

Kepler Project screenshot 1
Basic Trailer trailerWatch trailer on Steam ↗

Kepler Project

Kepler Project · Published by Kepler Project

Last updated 27 Sept 2026

Build rockets and shoot them into space. Once you reach orbit, you are halfway to explore anywhere in the Solar System.

Free to PlayComing SoonDJCTQ l

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Simulation · More free games

Embark on a thrilling simulation adventure where you design and launch rockets to explore the vast expanse of the Solar System. Build your way to orbit and beyond, turning dreams of cosmic travel into reality.

About this game

Build Rockets (coming soon)


Assemble custom rockets and spaceships from simple parts to find the right combination to reach your objectives!
We are developing a custom physics engine to reduce computational load, enabling higher performance for exploding rockets!

Shoot your Rockets into Space (coming soon)


Pilot your ship all the way from the launchpad to the surface of distant worlds!
This will become reality as soon as the surface and atmosphere simulation are added to our engine.

Explore the Solar System (work in progress)


Fly through the Solar System in real scale using our custom orbital engine that support very high accuracy calculations. No more round-off errors!

Non-Impulsive Maneuver


Our custom engine let you play with complex maneuvers and original trajectories.

features


  • realistic simulation of orbital dynamics using Kepler laws and patched conics
  • custom engine aimed for high performance and high precision
  • smooth orbit rendering even in extreme cases
  • deterministic simulation independent of time-wrap and SoI changes
  • efficient physics simulation of ship dynamics using Runge-Kutta 4
  • support for high time-wraps even while under acceleration
  • accurate itinerary planning

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS *: Windows 7
  • Processor: 1.5 GHz
  • Memory: 512 MB RAM
  • DirectX: Version 10
  • Storage: 100 MB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: 3 GHz
  • Memory: 2 GB RAM
  • DirectX: Version 11
  • Storage: 1 GB available space

Supported Languages

English, French

We use strictly necessary cookies to run this site. We don't currently set any analytics or advertising cookies. See our Cookie Policy for details.