🌍 EvoSim

A living Earth where species evolve, learn, and clash.

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God Powers

Pick a tool, then click / drag on the world.

Disasters

Right-drag to orbit · scroll to zoom · middle-drag to pan.

Brush size 90

Simulation

Speed 1× Mutation 0.12

State

Undo restores the last save (new world on Reset).

World

🌤️ Temperate Age

Show world feed

Population0
Species0
Herbivores0
Carnivores0
Extinct0
Avg IQ0
Complexity0
DayDay
WeatherClear
Sea level0
Climate0
Kills0
FPS0

Living species

❔ How to read the world

Each animal has a brain (a neural network) and a body of genes — size, speed, diet, aggression, mind, vision, cold-resistance, heat-resistance, and weather-resistance.

They adapt by evolution: animals that find food survive and breed, passing on slightly-mutated brains & genes. Useless variants starve. Over generations the population adapts — watch Avg IQ and Complexity.

They invent & USE things when clever enough: 🔥 Fire (build campfires to survive cold / scare predators), 🪓 Tools (forage & fight better), 🤝 Cooperation (form herds), 🛖 Shelters (assembled from nearby wood or stone), 🌾 Agriculture (grow denser plants). Plants regrow by local seed and pollen spread. Knowledge spreads to neighbours and passes to offspring, so it accumulates.

They fight: predators hunt prey; crowded, starving animals turn red with anger and kill rivals. Dead bodies remain on the ground, feed scavengers, then decay into richer soil.

Species split & die: a lineage that drifts far enough becomes a ✨ new species; when its last member dies it 💀 goes extinct. Read the log.

A living planet: day turns to night, weather fronts bring rain, storms, heatwaves and cold snaps, the climate swings through ice ages and warm epochs, sea level rises and falls, tectonic plates push up mountains, and ☄️🌋🫨 disasters strike. Rain fades out, leaves wet ground and puddles, pushes tides higher, then dries by sun and heat. Watch the era, weather and sea level in the World panel.

Camera: right-drag to orbit · scroll to zoom · middle-drag to pan (or use ✋ Move). Use ◐ night vision to inspect dark nights. Click the ground with a tool to act there.