Become a sponsor to I, Voyager
I, Voyager
I, Voyager is
- an open-source software planetarium
- a development platform for creating games and astronomy/educational apps in a realistic space simulation (or unrealistic if you want).
I, Voyager is free, open-source software built on the free, open-source Godot Engine. It is designed to be improved, modified and extended by the community. It is distributed as a set of Godot projects and editor plugins at our GitHub repositories. Godot supports project development in GDScript, C# and C++.
Find more information at the links below.
About | News | Planetarium | Developers | Forum
Become a Mercury Patron for $1 per month! Small contributions provide a morale boost and help us pay our web hosting bills. If you are a company, consider sponsoring us as a Saturn or Jupiter Patron. Our long-term goal is to become a non-profit entity. This would allow us to apply for grants and secure our existence into the future.
Screen Captures!
Jupiter and Io viewed from Europa.
Jupiter and the four Galilean moons – Io, Europa, Ganymede and Callisto – embedded in the orbital paths of many smaller moons.
Saturn and its rings. New! Just in time for our beta release, we have shadows! Semi-transparent shadows from Saturn’s rings are visible here. After considerable effort, we have shadows working at both planetary and spacecraft distance scales (see ISS below).
The International Space Station.
Our Planetarium’s interface provides easy navigation and tons of information. Links in the panels open Wikepedia.org pages for more than a hundred solar system bodies and dozens of astronomy concepts.
Positions of ~70,000 asteroids. Here, the Main Belt asteroids are cyan, with the Hilda subset in yellow. The Trojans at Jupiter’s L4 and L5 are magenta.
Asteroid orbits. Or is it an abstract painting? The “wheel” at the center are the Trojans (yellow) encompassing the Main Belt (reddish). The outer orbit lines are the sparse Centaurs (cyan) and Trans-Neptune Objects (orangish).
For developers, you can quickly build GUI from a large set of widgets. These widgets communicate with simulator internals and in some cases build themselves from simulator data, e.g., the planet/moon "navigator" widget at center-left. See also the Planetarium GUI above, which is composed entirely of existing widgets in the Core plugin.
Please support the effort if you like what you see!
Featured work
-
ivoyager/planetarium
Our Planetarium project!
GDScript 150 -
ivoyager/project_template
Use to create your own game or astronomy/educational app in a realistic (or not realistic) solar system.
GDScript 14 -
ivoyager/ivoyager_core
Godot Editor plugin that provides a solar system simulation.
GDScript 19 -
ivoyager/ivoyager_tables
Godot Editor plugin that imports tables and provides access to processed, statically typed data.
GDScript 1 -
ivoyager/ivoyager_units
Godot Editor plugin that provides unit conversion and quantity string formatting.
GDScript 1 -
ivoyager/ivoyager_save
Godot Editor plugin that saves and loads procedural scene trees using properties specified in object constants.
GDScript
$1 a month
SelectMercury 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!
$2 a month
SelectMars 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!
$5 a month
SelectVenus 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!
$10 a month
SelectEarth Patron ⨁
Home.
- You will appear on the I, Voyager credits page as an Earth Patron!
$20 a month
SelectUranus Patron ⛢
Plain in appearance and having an unfortunate name, Uranus dares to be different with an axial tilt of 98°.
- You will appear on the I, Voyager credits page as a Uranus Patron! (Wear it with pride!)
- Special consideration for feature development including one-on-one consultation with the lead programmer.
$50 a month
SelectNeptune Patron ♆
Neptune is more massive though smaller than Uranus. It's blue color is only subtly different – not the deep blue you've seen since the early press releases.
- You will appear on the I, Voyager credits page as a Neptune Patron!
- Special consideration for feature development including one-on-one consultation with the lead programmer. May include committed coding hours.
- Participation in I, Voyager's development into a nonprofit entity.
$250 a month
SelectSaturn Patron ♄
It's a hot topic among planetary scientists whether Saturn's rings are ancient in geological time or much more recent.
- You will appear on the I, Voyager credits page as a Saturn Patron!
- Special consideration for feature development including one-on-one consultation with the lead programmer and committed coding hours.
- Participation in I, Voyager's development into a nonprofit entity.
- Your name or company logo will appear on our home page at ivoyager.dev.
$500 a month
SelectJupiter Patron ♃
Jupiter comprises 71% of planetary mass and has had an enormous influence on the solar system's formation and structure.
- You will appear on the I, Voyager credits page as a Jupiter Patron!
- Special consideration for feature development including one-on-one consultation with the lead programmer and committed coding hours.
- Participation in I, Voyager's development into a nonprofit entity.
- In addition to our homepage, your name or company logo will appear on the loading pages of our Planetarium.







