🚀 Integer Voyage
Plot a ship's course with positive and negative moves.
How to play
- Pick a ship and a difficulty tier, then click Start Voyage.
- Read the start position and the move (or two moves).
- Click, tap, or use arrow keys to move the ship to the final position.
- Click Lock In Course to check your landing spot.
- Wrong landing? No penalty, just move the ship and try again.
- Earn ⭐ stardust for every plotted course to unlock new ships.
An integers game that makes negative moves visible
Integer Voyage is a free integers game built around a real number line that spans both negative and positive numbers, not just a positive-only strip. A starship starts at a given position, then one or two moves are announced, a positive move sails forward, a negative move drifts backward, and the job is to plot exactly where the ship ends up.
There's no penalty for missing. A wrong lock-in just asks for another try on the exact same voyage, with no lost streak and no timer pressure. Six tiers separate the two directions first, positive-only moves, then negative-only moves, before mixing them, widening the space, and finally adding a second move in the same round for a genuine two-step voyage.
Every correctly plotted course earns stardust, and collecting enough stardust unlocks a new ship, from the starting Scout Pod through Cruiser, Frigate, Dreadnought, and the Flagship. It's free, works with a mouse, touchscreen, or keyboard, needs no download or account, and saves your stardust and best streaks locally in your own browser. See the Parents & Safety page for the full privacy details, or browse the rest of the Math Games hub.
Frequently asked questions
How do I play Integer Voyage?
Read the start position and the move (or two moves), then click, tap, or use arrow keys to move the ship to the final position on the number line. Click Lock In Course to check it.
What happens if I land on the wrong number?
Nothing bad. You get a gentle try-again message and can move the ship and lock in again on the same voyage. There is no penalty and no streak lost.
What does the number line cover?
Both negative and positive integers, so moving forward and moving backward both stay entirely within the visible line.
How do I unlock new ships?
Every plotted course earns stardust. Collecting enough stardust unlocks a new ship permanently, from the starting Scout Pod up to the Flagship.