The catalogue
Five games.
Three of them share a world — Varath is the canon, and the other two are built out of it rather than beside it. The other two are somewhere else entirely: one on a sea with no map, one between the stars.
Varath World
The same world, walked rather than watched — a 2D tile game generated from Varath's own canon. Tap the ground to move, tap anything to act on it.
Hearthkeep
Build a hold that never resets, muster champions from the fire, and raid rival holds for what you need. Printed rates, no pity, nothing for sale.
Long Orbit
The last two people: a father and his eight-year-old son, crossing the stars in an ark built for 214 that is now their home. Somber, slow, and yours to walk.
How they fit together
Varath is the canon. The others are built from it.
Varath came first and is the source of truth for the world: its items, its skills, its creatures and its combat maths. Varath World is that same world as a place you walk around in, ported from Varath's own data with a ledger tracking every transfer — so it is one world under two games rather than two worlds sharing names. Hearthkeep is set in Varath but plays nothing like either, and it deliberately avoids every system the other two already do well.
Nostos is not in Varath at all. It is a closed Bronze Age sea, drawn in pixels, and it shares the studio's habits rather than its world.
Long Orbit is further off still: a father and his son, the last two, on a ship built for two hundred and fourteen. It is built on Nostos's engine, and nothing else.