Simulated Evolution — DNA helix with evolving microorganism

Simulated Evolution

They don't know the plan. They just follow the rules.

Download on the App Store

How It Works

Simple Rules

Each organism carries a gene that controls how it turns. Adjust probabilities for six directions and see what emerges.

Natural Selection

Organisms that find food survive and reproduce. Those that don't, fade away. No designer required.

Emergent Behavior

Over generations, purposeful-looking movement appears from purely random mutation and selection pressure.

Meet the Organisms

Hand-drawn protozoa, each shaped by the forces of evolution.

Organism 1 Organism 2 Organism 3 Organism 4 Organism 5 Organism 6 Organism 7
Organism 8 Organism 9 Organism 10 Organism 11 Organism 12 Organism 13
Organism 14 Organism 15 Organism 16 Organism 17 Organism 18 Organism 19 Organism 20
Organism 21 Organism 22 Organism 23 Organism 24 Organism 25 Organism 26

The Origin

Based on A.K. Dewdney's classic Scientific American "Computer Recreations" column, which explored how lifelike behavior can arise from extraordinarily simple rules. This app brings that experiment to your pocket.

Start Evolving

They don't know the plan. They just follow the rules.

Free on the App Store for iPhone and iPad.

Download on the App Store