C++ Space

Open-source C++ projects categorized as Space

Top 7 C++ Space Projects

  1. endless-sky

    Space exploration, trading, and combat game.

    Project mention: Why isn't There a open-source (project) game? | news.ycombinator.com | 2025-11-23

    There are many open-source games. There are few large-scale high-polish open source games because it's difficult to build a business model around that. Unlike non-game software, games are ~exclusively consumer-facing, so you can't sell support or use them as a loss leader, and they're standalone applications that are difficult to monetize with online features or to use as the core of a closed-source commercial product.

    That said, there are still lots of great projects out there (some of which have even had commercial success), for example:

    - https://github.com/a327ex/SNKRX

    - https://github.com/beyond-all-reason/Beyond-All-Reason

    - https://github.com/endless-sky/endless-sky

    - https://github.com/Anuken/Mindustry

  2. Stream

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  3. Celestia

    Real-time 3D visualization of space.

    Project mention: Celestia – real-time 3D visualization of space | news.ycombinator.com | 2025-09-14

    HoverZoom: Chrome plugin sold by original dev, new update included spyware and ads.

    As I said, I don't mind if the answer is "we are volunteers who love this", but I do ask that formal webpages presenting a product explains it's funding model. Their github (https://github.com/CelestiaProject/Celestia) is much better at this.

  4. pioneer

    A game of lonely space adventure

  5. OpenSpace

    This is the official GitHub repository for OpenSpace: an open source astrovisualization project. For instructions on how to build and run OpenSpace, see the Getting Started Guides on the wiki page at http://docs.openspaceproject.com.

  6. raceintospace

    This is the GitHub home of Race Into Space, the computer version of the Liftoff! board game by Fritz Bronner. It was developed by Strategic Visions and published by Interplay as a disk-based game in 1993 and a CD-ROM in 1994. It was open-sourced in 2005 and a number of improvements have been made over the original.

  7. ISS-Tracker

    ISS Tracker Pedestal Code (by dpelgrift)

  8. PWSat2OBC

    Source code of the PW-Sat2 On Board Computer (OBC) software.

  9. InfluxDB

    InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

    InfluxDB logo
NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

C++ Space discussion

C++ Space related posts

  • Naev – open-source game about space exploration, trade and combat

    2 projects | news.ycombinator.com | 25 Nov 2023
  • Pioneer – An Open Source space adventure game set in our galaxy

    1 project | /r/hypeurls | 5 May 2023
  • Pioneer – An Open Source space adventure game set in our galaxy

    1 project | news.ycombinator.com | 5 May 2023
  • Semi realistic space games. Newtonian physics - but not necessarily full orbital dynamics

    1 project | /r/spacesimgames | 16 Apr 2023
  • What is the best space exploration game to play?,something like space engine and you can ride your own spaceship

    1 project | /r/space | 28 Feb 2023
  • understanding that the game isn't pauseble

    1 project | /r/wholesomememes | 26 Feb 2023
  • can anyone find a hardcore and very realistic spacesim?

    1 project | /r/spacesimgames | 8 Feb 2023
  • A note from our sponsor - Stream
    getstream.io | 22 Dec 2025
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Index

What are some of the best open-source Space projects in C++? This list will help you:

# Project Stars
1 endless-sky 7,003
2 Celestia 2,174
3 pioneer 1,800
4 OpenSpace 938
5 raceintospace 200
6 ISS-Tracker 72
7 PWSat2OBC 69

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