# An endless procedural Three.js world

A public, creator-attributed prompt for a calm browser world with exploration and interactive entities.

Canonical URL: https://aiidelist.com/blog/opus-5-5-endless-world

Language: en

Published: 2026-09-25

Updated: 2026-09-25

*Preview credit: argofowl, via the linked 3D Prompt collection.*

A public, creator-attributed prompt for a calm browser world with exploration and interactive entities.

## What the source shows

The source attributes this world-building prompt to argofowl using Opus 5.5 at extra-high effort. It asks for an explorable procedural world. The public material is useful for inspecting the intended experience, not for proving unlimited variety.

## What to inspect

An endless-world claim requires more than a short preview. Check whether areas repeat, whether memory grows during travel and whether returning to a location produces consistent results. Those properties are not established by the available image.

## A useful way to try this

For your own attempt, choose a seed and a small terrain chunk size. Require one interaction and a clear progress indicator. Measure memory while crossing multiple chunks, and record the exact seed when a problem appears.

## Evidence and limitations

This case is documented through a curated page linking to the creator. We reviewed the published material, not a local reproduction or the creator’s full session. The evidence panel above records the source type, settings and prompt attribution. AI IDE List has not independently reproduced this result.

[Open the source](https://3d-prompt.com/prompts/claude-opus-5-5-2102529695908806728).

[Explore Claude Opus 5.5 examples](/models/claude-opus-5-5/examples) or [compare model specifications and costs](/models/compare/claude-opus-5-5-vs-gpt-6-astra).