Minecraft Java · Fabric + NeoForge · 26.1.2

RingWorld

RingWorld wraps your Minecraft world into a seamless, customizable loop.

In-game footage from the current build

Test server

Get RingWorld 1.0.

The test server is online at andwhatnotstudio.com:25565. It runs NeoForge, so use the NeoForge 1.0 file to join. Fabric clients cannot connect to it.

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Requires Minecraft Java 26.1.2 and Java 25. Fabric and NeoForge are separate builds: use the loader that matches your server. The public test server currently requires NeoForge. RingWorld must be installed on both the client and server. Licence terms · Issue tracker

A snowy Minecraft valley beneath terrain curving high overhead to reveal the RingWorld loop — Real terrain follows the curve, all the way around.

How it works

The world is wrapped into a ring.

Visually, the world is warped and wrapped around into a ring, as much as Minecraft can handle, which is about 32 chunks at most.

The fun part: the chunks at each end of the map are treated as neighbours. It’s a true seamless ring. Players can see each other across the join, fight across it, build near it and travel through it without changing worlds.

Width: Configurable finite band
Circumference: Configurable true loop
Beyond view distance: The terrain atlas completes the visual ring

World size

Choose the width and circumference.

A shorter ring has a much more obvious curve. A longer one looks fairly normal while you’re standing on it, but gives you a much larger world overhead.

The current default is 16,384 blocks around and 256 blocks wide. This is what the mod is developed around, with a 28 chunk render distance, so it will probably give you the best visual experience.

A broad RingWorld curve rising around a Minecraft valley — Open curve · a wide horizon

A distant terrain atlas map bends around the far side of a RingWorld valley — The atlas completes the distant curve

The atlas

The rest of the ring fills in while you play.

You can use the world straight away. Minecraft generates normal playable chunks around you, while RingWorld builds a lighter map of the whole surface in the background.

Real chunks first. Nearby terrain, blocks, mobs and collisions are ordinary Minecraft.
A temporary ring. A fogged, biome-coloured stand-in bridges the horizon and walls so there is no empty gap.
Progressive detail. Generated surface samples fade in section by section and are saved as they arrive.
The finished Atlas. At 100%, the fog and stand-in disappear and the full curved terrain model takes over.

Ring Atlas Generating: X% shows at the top left until it is done. You do not have to walk around the world, and generation can resume after a restart. Small rings can finish quickly; larger rings may take tens of minutes or longer depending on the machine and server load.