City Life

Conway's Game of Life, built into a city.

Seed pattern Map Seed (Continents)

Initial Density: 1.5% Speed: 10 gen/s Average Life: 100 gens Tool Mode

🖌 Paint ✋ Pan

Brush: 1 cells

Natural Disasters

Active Disaster

Selecting a disaster enables placement mode. Click on the map to spawn.

Generation0

Population0

Lonely (0–1)0

Stable (2–3)0

Crowded (4+)0

Deaths0

Desert0

Scorched0

Boats0

Lonely — 0–1 neighbors

Stable — 2–3 neighbors

Boat — travels to new land

Survive: live cell with 3 or fewer neighbors lives on.
Die: live cell with >3 neighbors dies from overpopulation.
Old Age: cells die randomly over time based on the Average Life setting and local Climate Zone.
Birth: empty cell with exactly 3 neighbors comes alive.
Rebuild: a ruin with exactly 3 neighbors is rebuilt.
Aging: rundown → normal (12 gen) → vibrant (24 gen).
Paint: click/drag to build; painted cells survive one step.