Embark on an endless journey aboard a train that circles the entire galaxy.
The setting is a distant galaxy inhabited by humans, alien species, and mechanical lifeforms, featuring countless planets and civilizations. From highly developed cities to frontier settlements, alien worlds with unique cultures, and stars where civilization has perished, a vast variety of worlds exist.
Connecting them all is the interstellar railway, the Galactic Loop Line, which circles the galaxy. People board the trains for various purposes—work, tourism, migration, or travel—sometimes living on intermediate stars while crossing the galaxy. Because a full circuit takes longer than a human lifespan, for many, saying goodbye to a star they have passed once becomes an eternal parting.

You are waiting for the train, a one-way ticket in hand.
Hoshimi Station—a tiny station on a remote planet. You are alone on the weathered platform. Above you, a sky full of stars stretches out.
The words printed on your ticket read: "Galactic Loop Line."
A long-distance railway that circles the galaxy, visiting countless planets. The time it takes for one full loop is far longer than a human life.
Release Date 2026.09.14 / Last Updated 2026.09.14