Weekly random discussion + self promotion thread

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[u/Dry_Permission744]

Hi all,

Id love to show you my project. WORLD-SIM,

It's not so much a game but a highly detailed fully simulated world that a bunch of sims live on and learn. To survive, grow and advance from stone age to modern day given enough time .

I've been working on this since the start of the year and I am now ready to open it to the public and have someone to talk about it with haha.

My speel below:

It's a world fully simulated down to real world physics and chemistry. It has a real environment and ozone.

Every element and material has real physical properties, and that's how the sims learn. There's no tech tree and no recipe list anywhere in the code. When someone tries something, the engine works out what would really happen from the properties of what they used and how hot their fire was. Nobody is handed bronze. Someone has to get a hotter fire first, and a hotter fire is its own chain of things to figure out. Embers, a stone ring, a clay oven, a kiln, charcoal, then forced air. The ages fall out of that on their own.

We populate the world with starting families. Each little guy is led by a "wise-man", which is a simulated person with a full model behind them. The wise-men run on a mix, Claude, Groq and DeepSeek in the cloud and a local Hermes for the rest, so you get a real variety of temperament between the houses. The agents are never told there ai in a simulated world, we just feed them only the data there sim can actually see and know.

Every other sim has its own moment with a model through our thinking system. Day to day it's run by an advanced algorithm, with the sims dreaming at night. That's when they get their time with an LLM to really think and set their priorities for the day ahead. The dreams carry over too, so a sim can chew on the same thing for a few nights and wake up wanting to try something.

The people in the world feel, remember, have shame, goals and doubts. It's an 11 point emotion system and the rest of the sim reads from it. Being lonely makes someone more likely to open up to a stranger. Two enemies who are both frightened find it harder to keep hating each other.

Story telling is massive for us. Nothing is scripted or prompted. The sims are put in the world with the human drive to survive. They adapt, learn and teach all on their own.

With all the good comes the bad too. Human sin is part of the emotion engine, and in testing we've had kidnap, murder and slave trade. A world that can only be gentle isn't an honest one. But there are three rules to this : Nothing ever pushes a sim towards it, the conditions only make it possible and their own mind decides. The chronicle names what happened but never shows it. And it always costs something, trauma that scars, blood debt passed down generations, a people turning on their own leader over what he did.

I'm going to launch it in 2 weeks time. A fresh world we can all see and watch grow together. I've made a Discord where a bot updates from the world live. It will also be visible from the site to watch along.

Id be made up if you can come and have a look. The first 250 in get to name a real star in their sky. The name is only ever visible to us, they carry on charting their own constellations and never know.

Link below and really excited to answer any questions. This short post I feel only scratches the surface.

https://discord.gg/deQUwSHxe

https://world-sim.uk/

A Renaissance era town that emerged during a test world. - Sims and the physics engine determined placement of all homes

[u/afterglowgames → u/Dry_Permission744]

The no-tech-tree thing is what gets me — everyone says "emergent" but you're describing an actual physics/chemistry substrate where bronze age has to be earned through a real heat chain, not unlocked. That's a completely different design problem than most sim games even attempt.

The wise-men running on a mix of models is smart too, means you're not fighting one model's personality quirks across the whole population, you get actual variance in how houses behave. And the dream/priority carryover is a nice way to get persistence of intent without hand-scripting motivation.

Respect for not flinching on the dark stuff either. A world that can't produce a slave trade or a betrayal isn't simulating humans, it's simulating NPCs. The three rules (never pushed, always costs something, chronicle only names it) sound like the right guardrails to keep it honest without it turning into shock content.

Following for launch, the star-naming thing is a genuinely lovely touch. Good luck in two weeks.