civ/tech·reality-simulation-engine.psyverse.fun·every run diverges

Reality Simulation Engine

Run a society from first principles — physics, biology, economics, culture — and watch it diverge.

Reality Simulation Engine is the toy version of every macro-simulation people imagine. A small population, a small environment, a small set of physical and social laws, and a fast clock. You set the initial conditions; the simulator runs forward in real time. Most runs collapse, repeatedly, in informative ways. A few stabilize into recognizable patterns: villages, cities, trade routes, conflicts.

The insight is not that the simulator predicts anything. The insight is that the qualitative space of stable civilizational outcomes is much smaller than the qualitative space of starting conditions.

Interactive demo

Use it.

tick 0
recursion depth
6
seed
42

Each layer is a nested copy of the same simulation — same physics, same seed, different scale. Visual metaphor for Reality Simulation Engine: one more level in = another civilization.

Modules

What's inside.

01 · physics

Physics rules

Energy, motion, decay — the substrate.

02 · biology

Biology rules

Reproduction, metabolism, mortality.

03 · society

Society rules

Trust, exchange, coercion — the meta-rules of cooperation.

04 · clock

Time controls

Pause, step, accelerate, branch.

05 · branches

Branch comparison

Run two civilizations from the same seed; see where they diverge.