Plan the mission. Fly the numbers.
A mission-design workbench built on real orbital mechanics: pick a launch site and vehicle, build the delta-v budget, find the transfer window and watch the trajectory unfold in 3D — from a LEO phasing burn to a Jupiter gravity assist.
Free to plan anything in the Earth–Moon system, on the desktop or in your browser, no account needed. Pro and Premium are one-time purchases that work in both.
Time of flight 5 h 16 min
Propellant 2,340 kg · 12 % margin
C3 9.1 km²/s² · v∞ 2.6 km/s
Departure burn 3.62 km/s from 300 km
Every manoeuvre, from the pad to the outer planets.
Launch from anywhere
Launch sites from Cape Canaveral to Esrange, a library of real vehicles with staged mass budgets, inclination limits, Earth-rotation gain and a documented loss model.
Transfers that add up
Hohmann, bi-elliptic, plane changes, phasing orbits, apsis raises and translunar injection — delta-v, time of flight and propellant for the vehicle you chose.
Windows and porkchops
A robust Lambert solver fills in departure × arrival porkchop plots with C3, arrival v∞ and total delta-v; hover to read any launch window.
Gravity assists
Flyby geometry from v∞ and periapsis radius, B-plane targeting and multi-flyby sequences such as Earth–Venus–Earth–Jupiter, with the delta-v each one saves.
Low thrust and dispersions
Edelbaum spirals for electric propulsion, Monte-Carlo dispersion of the delta-v budget and margins you can defend.
See it in 3D
Sun- and planet-centred views with real planetary ephemerides, true-scale bodies, trajectory arcs, a time slider and a printable mission report.
Textbook methods, shown openly.
Every number comes from the methods on the Methods page: JPL approximate planetary elements, patched conics, universal-variable Lambert and Tsiolkovsky staging. Nothing is tuned to look good. The app tells you when a result is an estimate — launch losses, flyby timing — and what it assumes.
Example: Mars sample return, outbound leg
LAUNCH Falcon Heavy · Cape Canaveral · 28.5° LEO 300 km parking orbit Δv 9.31 km/s* TMI 2033-04-18 · C3 9.1 Δv 3.62 km/s MOI 2033-11-02 · 400 km Δv 2.08 km/s BUDGET 5.70 km/s + 10 % margin 2,980 kg propellant *launch delta-v incl. modeled losses
Pay once. Keep it forever.
Every licence is perpetual and includes a year of updates. Nothing phones home — the app works fully offline.
Free
For the Earth–Moon system.
- Sun, Earth and Moon with real ephemerides
- Launch sites and three vehicles
- Hohmann, bi-elliptic, plane change, phasing, TLI
- Delta-v budget and 3 saved missions
- 3D view
Pro Most popular
For mission designers and students.
- Full solar system and major moons
- Lambert transfers, porkchop plots and launch windows
- Complete vehicle library and custom vehicles
- Unlimited missions, CSV/JSON export, printable reports
- High-resolution screenshots
Premium
For analysts and teams.
- Everything in Pro
- Gravity assists and multi-flyby sequences
- Low-thrust (electric propulsion) transfers
- Monte-Carlo delta-v dispersion
- Custom bodies and batch export
Your Andromeda Mission order
Find your purchases and original keys in your account. Sign in with the email used at checkout.
Checking payment and licence delivery…
Open Andromeda Mission, click the edition badge (top right) or Help → Licence, paste the key and click Activate. The key is checked offline. Keep a copy of the key and your Stripe receipt.
Prices in EUR. Any applicable tax is shown at checkout.
| Free | Pro | Premium | |
|---|---|---|---|
| Real planetary ephemerides, Kepler propagation, 3D view | ✓ | ✓ | ✓ |
| Launch sites, inclination limits, loss model, staged mass budget | ✓ | ✓ | ✓ |
| Earth-system transfers and delta-v budget | ✓ | ✓ | ✓ |
| Full solar system and moons | – | ✓ | ✓ |
| Lambert solver, porkchop plots, launch windows | – | ✓ | ✓ |
| Full vehicle library, unlimited missions, export and reports | – | ✓ | ✓ |
| Gravity assists and multi-flyby sequences | – | – | ✓ |
| Low thrust, Monte-Carlo dispersion, custom bodies | – | – | ✓ |
Install Andromeda Mission
One installer for every edition — your licence key unlocks Pro or Premium. Needs a graphics card or integrated GPU with up-to-date drivers for the 3D view. Prefer not to install? The same planner runs in your browser.
Checking for the latest tested release…
Windows
Windows 10 or 11 · x64 · .exe installer
Windows download unavailableRun the setup file. It adds Andromeda Mission to the Start menu and desktop. Uninstalling keeps your settings and licence.
Browser
Any modern browser with WebGL 2 · nothing to install
Open Mission in your browserThe free edition opens straight away. Pro and Premium unlock automatically when you sign in with the 14d.space account you bought with, or when you paste your licence key.
Download SHA256 checksums · Verify the file before running it.
Before you install
How accurate are the results?
Planetary positions use the JPL approximate elements (good to a fraction of a degree, 1800–2050). Transfers use patched conics, which is what preliminary mission design uses; a flight-ready trajectory still needs a full n-body optimiser. The Methods page in the app lists every formula and reference.
Does it need an internet connection?
No. Ephemerides, vehicles and launch sites are bundled. The desktop app only goes online to check 14d.space for updates.
Can I use Andromeda Mission without installing it?
Yes — open it in your browser. It is the same planner with the same editions: Free needs no account; Pro and Premium unlock when you sign in with your 14d.space account or paste your licence key, which stays in that browser.
How do updates work?
Andromeda Mission checks 14d.space for a newer verified release shortly after it starts and every four hours, and installs it when you close the app (Windows) or the next time you open it (Linux). Only packages signed by 14d.space are accepted.
What happens after the update year?
Your licence keeps working forever with every release from your update year.