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I, Voyager

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I, Voyager

I, Voyager is

  1. an open-source software planetarium
  2. a development platform for creating games and educational apps in a realistic solar system.

It is designed to be improved, modified and extended by the community. I, Voyager runs on the open-source Godot Engine and primarily uses Godot’s easy-to-learn GDScript (similar to Python). It can be extended into an independent free-standing project (a game or other software product) using GDScript, C# or C++.

I, Voyager is free to use and distribute under the permissive Apache License 2.0. Creators who build on I, Voyager can sell what they make without paying royalties or fees.

Please find more information at our website!

Goal #1: Make I, Voyager into a nonprofit entity!

See details below the screen captures!

Screen Captures!


Jupiter and Io viewed from Europa. We've hidden the interface for one of the best views in the solar system.


Jupiter and the four Galilean moons – Io, Europa, Ganymede and Callisto – embedded in the orbital paths of many smaller moons.


Saturn's rings and its close-orbiting moons.


Uranus' moons are an interesting cast of characters (literally). The planet's 98° axial tilt puts the inner solar system almost directly to the south in this image.


Here's the solar system on July 14, 2015, the day of New Horizon's flyby of the dwarf planet Pluto (♇). Not coincidentally, Pluto was near the plane of the ecliptic at this time.


Pluto and its moon Charon to scale. Both are tidally locked so their facing sides never change.


Jupiter (♃) is the shepherd of the Solar System, as is evident in the orbits of asteroids (64,738 shown here). The Main Belt (the ring) and Trojans (the two lobes leading and lagging Jupiter by 60°) are the most obvious features here. Hildas are also visible. I, Voyager has orbital data for >600,000 asteroids (numbered and multiposition) but can run with a reduced set filtered by magnitude.


Main Belt and Trojans viewed from the side. We use the GPU to calculate and update asteroid positions (each asteroid is a shader vertex that knows its own orbital parameters).


The Planetarium has easy-to-use interface panels that can be hidden.


For developers, we have a large set of GUI widgets that know how to talk to the simulator. These can be easily dropped into Containers to make your custom GUI however you like.


Here's our "starter GUI" in the Project Template to get you going on game development.

Please support the effort if you like what you see!

@ivoyager

Help make I, Voyager into a nonprofit entity! Official nonprofit status will shield us from tax liability, allow us to apply for grants, and secure the organization's existence into the future. Funds will cover costs for our ad-free website, continued deployment of the web-based planetarium, and legal and filing fees for creation of a nonprofit entity. We will initiate formation of the nonprofit when we reach a subscription funding level of $500 per month.

Featured work

  1. ivoyager/planetarium

    Our Planetarium project!

    GDScript 135
  2. ivoyager/ivoyager

    DEPRECIATED. Replaced by 'ivoyager_core' in projects v0.0.17 and after.

    GDScript 47
  3. ivoyager/project_template

    Use this to create your own game or educational app set in a realistic solar system.

    GDScript 11

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Mercury Patron ☿

Our smallest planet Mercury is locked in 3:2 spin-orbit resonance, rotating exactly three times for every two trips around the Sun.

  • Thank you! Your support provides a morale boost that'll keep us programming!

$5 a month

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Mars Patron ♂

The second planet on the scale of least to most massive, Mars is perhaps the next world on which humans will walk.

  • If you are one of the first 50 Mars Patrons, you will appear on the I, Voyager credits page!

$10 a month

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Venus Patron ♀

It's hell below, but high up in the clouds you could get by with an oxygen mask and some really good (and acid-resistant) rain gear.

  • If you are one of the first 50 Venus Patrons, you will appear on the I, Voyager credits page!

$20 a month

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Earth Patron ⨁

Home.

  • You will appear on the I, Voyager credits page!

$50 a month

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Uranus Patron ⛢

Plain in appearance with an unfortunate name, Uranus dares to be different with an axial tilt of 98°.

  • You will appear on the I, Voyager credits page!
  • Propose a feature for I, Voyager! You can have one-on-one discussions with us about a new feature. Organization owner Charlie Whitfield will work toward its accomplishment by coding or coordinating among other developers.

$100 a month

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Neptune Patron ♆

Neptune is more massive (though smaller) than her sister Uranus. And a prettier blue!

  • All of the benefits above.
  • We will use your support to more quickly achieve nonprofit status for I, Voyager. After that, you will be invited to participate in the nonprofit's future development.

$500 a month

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Saturn Patron ♄

It's a hot topic among planetary scientists whether Saturn's rings are ancient in geological time or much more recent.

  • All of the benefits above.
  • Your name or company logo will appear on our home page at ivoyager.dev.

$1,000 a month

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Jupiter Patron ♃

Jupiter comprises 71% of planetary mass and has had an enormous influence on the solar system's formation and structure.

  • All of the benefits above.
  • In addition to our homepage, your name or company logo will appear on the loading page of the web-based Planetarium.