rimworld n.

If they hadn’t insisted on a certain surplus of fuel and credits being available at all times, C-ships would have become marooned on out-of-the-way colonies and their service would have collapsed. Out here on the impoverished Rim worlds, they were hated like poison. But it wasn’t like that in the Centre.

Hydra was cruising above speed-of-light toward the Rim world Ultima Thule, where she would refuel and start prowling for outlaws.

So this, he thought, is Lorn, industrial hub of the Rim Worlds. This is as far as I go. This is where I get off. There’s no farther to go.

Two years previously Renark had suddenly resigned from his position as Warden of the Rim Worlds.

The Empire never embraced the whole of the galaxy, though people generally assume it did. It could be a Rim world, some distance from the hub.

That argument sounds convincing to us, but I doubt if it would cut much ice on a Rim world before the alien threat became a reality.

Betting syndicates developed, and starship crews on long rim-world voyages began to frequent the planets for illicit gambling.

The very sailship journey from the rim world of Tartarus to the Core planet of Million would have bankrupted him.

The central plot revolves around a gathering of Imperial leaders (called Moffs) gathering on Akiva, a distant Outer Rim world.