Planned Release Date: September 2026

About This Game

Some places feel wrong before you can explain why. Others feel like home before you've spent a minute in them.

Thalyn builds 3D worlds that understand the difference.

You choose how a place should feel and what belongs at the heart of it. Thalyn resolves everything else — the lie of the land, where the water sits, how the paths run, which trees grow where, the light, the air — into a single coherent world you can walk through in first person and take into Roblox.

Not a terrain generator. Not an asset pack. A complete world, built around your intent, in minutes.

Bring your own world's centrepiece.

Most generators hand you their world. Thalyn builds one around yours.

Drop in your own model — a castle, a cottage, a ruin, a monument, a creature — and Thalyn treats it as the reason the world exists. Terrain, sightlines and paths arrange themselves so it sits where it should and is always reachable on foot. Combine several models into a single landmark and the world still resolves around the whole.

The day-one library ships with buildings, landmarks and hundreds of trees, shrubs, rocks and flowers if you'd rather start from what's there.

Choose the feeling. Everything answers to it.

Six emotional archetypes — Serene, Joyful, Oppressive, Desolate, Eerie, Chaotic — each one driving the entire world, not a colour filter over it. Terrain shape, vegetation species and density, water, fog, sky, time of day, wind and the placement of every object all resolve from the one choice.

This is built on environmental psychology — prospect-refuge theory, attention restoration, biophilia — the same body of research used to design real spaces people actually want to be in. It's why a Thalyn world reads as deliberate instead of scattered.

Change the entire look in a single pick

Walk your finished world, open the style selector, and choose a different visual character. Every surface, texture and material in the scene transforms at once — in real time, while you're standing in it. Not a post-process filter. The whole world.

Take it into Roblox

Export any world as a complete, playable Roblox place — terrain, assets, lighting and atmosphere intact, with triangle budgets enforced for the platform so it runs properly on the devices your players actually use. A starter game pack is included in every export, so there's something to do the moment your friends walk in.

Also exports to glTF for Blender, Godot, Three.js and anything else that reads it.

Exporting never costs credit. It's a pipeline step, not a generation.

Deterministic, not generative

Thalyn does not paint worlds with a diffusion model. Every world is built by a rules-based generation engine grounded in ecological and psychological research.

That has a consequence that matters: [b]the same seed always rebuilds the same world, exactly.[/b] Share a seed and someone else gets your world, not an approximation of it. Return to something you made six months ago and it's still there, unchanged. Nothing you build is at the mercy of a model version.

What £19.99 gets you[

One purchase. No subscription. Every feature is available from the first launch — nothing is held behind a higher tier.

On credits, plainly: generating a new world spends Awen, an in-app credit, because generation runs on Thalyn's servers and that has a real cost. Every copy ships with a starting grant sized so your first sessions feel like abundance rather than a meter. Walking, editing, re-skinning and exporting your worlds are all free and unlimited, forever. Additional Awen is optional and never required to keep using what you've made.

Everything you create is yours. Commercially, permanently, including if Thalyn ever stops being sold.

ThalynQuest — free, optional, woven in

A treasure hunt hidden inside your own worlds. Read the riddles, shape the worlds they describe, find seven relics. The rewards are world-building powers and ten exclusive visual looks that cannot be bought with money or credit — only walked for.

The tool is complete without it. It's a gift, not a gate.

Who it's for

• Roblox creators who want a world that doesn't look like every other world

• ]Indie developers who'd rather ship the game than spend three weeks on the landscape

• Artists and worldbuilders with a model they love and nowhere to put it

• Anyone who has ever pictured a place clearly and had no way to build it

No code. No 3D modelling. No asset wrangling.

Ó Senchetel, Beirthir Cach Bith — from ancient song, all worlds are born.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI tools were used to assist in the creation of marketing artwork and store page assets. All game content is procedurally generated through Thalyn's proprietary algorithms