ONE ENGINE · FOUR WORLDS · BUILT IN THE OPEN

Give it a world code.
See what grows.

Three energy worlds, a tidal space, and one earth anchor at the galactic centre. Nothing here reaches heat death — it only cycles. Space and time are flows of energy, and a single ledger keeps a full account of both.

4worlds 1engine MITopen source Deterministicsame code in, same run out
01 / Worlds

One engine. Different worlds.

The same engine grew four places you can walk into. Some are playable today; some are still growing.

Web lab

Molecular Lab

MOLECULAR LAB

Open a world, produce raw material, collect it, drop anything onto the bench and watch what happens. A new element, a new molecule — reproducible, and showable.

Enter the lab ↗
Single-player

The Yu'an Observatory

THE YU'AN OBSERVATORY

Not a physics sandbox. The previous researcher, Lin Qiao, cut the station's power before her last experiment. You take her seat. Seven chapters, four instruments, eighteen achievements — offline.

Coming to Steam ↗
Daily

Daily Happy

每天HAPPY

Naming candidates with modern meanings, a daily reading of your energy rhythm, and small suggestions on what to eat, wear and listen to.

meitianhappy.com ↗
Relationships

ATTUNE

合拍 · PRIVATE BETA

Two people, two rhythms. Where they miss each other, and what to do about it — one conversation at a time.

Ask about the beta ↗
02 / Engine

The world evolves, and every step is traceable.

Input is a world code. Output is an energy droplet, a civilisation droplet, a matter droplet and a tidal cloud — plus a ledger that records what happened, without interpreting it.

Nodes
Four droplets plus one earth anchor at the galactic centre.
Motion
Each droplet evolves on its own, yet depends on the others. Remove one and the world stops evolving.
Determinism
Same world code, same evolution. Frame is the only axis.
Ledger
Four quantities. It does not explain, and does not judge. Interpretation is left to the reader.
Licence
MIT. Source and examples on GitHub.
03 / Origin

The engine that cost one bowl of ramen.

I did not write this engine. It was traded for a bowl of ramen.

The author doesn't drink, only smokes, lives on noodles and dumplings, avoids company and rarely shows his face. In one sentence he gave the source to a friend of mine: “If you like it, take it and make something you enjoy.”

He had one condition: no papers.

We spoke once. He said the universe does not reach heat death, does not expand forever, and does not collapse back to a point — because there is a galactic centre, and a rift under Buzhou Mountain.

Those were his words. I did one thing: took the engine, turned it into something playable, and — as promised — opened the source.

04 / About

One person, and some ideas that keep growing.

QuantumSea is a one-person studio. An engine that arrived by accident, and a promise to keep it open so other people can grow their own worlds.

The games are in progress. They ship when there is something worth shipping, not on a marketing calendar.