NetLogo Models Library

If you download NetLogo, all of the models in the models library are included. You may also run the models here, in your browser.

Sample Models are the most carefully checked models we have. They are intended to be examples of good coding and documentation practice. Models marked "unverified" are also complete and functional, but are still in the process of being reviewed for content, accuracy, and quality of code.

Curricular Models are associated with curricula developed at the CCL. The models also appear, sometimes in a slightly different form, in Sample Models. For information on the curricula, see the CCL home page.

HubNet Activities are for use with our HubNet participatory simulation architecture.

"NetLogo User Community Models" are models contributed from the user community to be shared with other NetLogo users. They are not included with NetLogo, but are available on the web.

What’s new?

Added August 1, 2008: two new computer science models (Particle Swarm Optimization, Simple Genetic Algorithm), two new network models (Diffusion on a Directed Network, Virus on a Network),

Added September 25, 2007: two new earth science models (Continental Divide, Climate Change), one new chemistry model (Diprotic Acid), one new materials science model (Solid Diffusion), two new mathematics models (PANDA BEAR Solo, Surface Walking 2D), one new network model (Team Assembly), five new computer science models (Hex Cell Aggregation, Particle System Basic, Particle System Fountain, Particle System Waterfall, Particle System Flame), one new game (Planarity), two new social science models (Language Change, El Farol), three new NIELS electromagnetism models: (Ohm's Law, Series Circuit, Parallel Circuit),

Added June 16, 2006: two new biology models (Daisyworld, Wolf Sheep Stride Inheritance)

Added April 2006: one new earth science model (Grand Canyon), one new EvoLab evolution model (Sunflower Biomorphs), one new social science model (Ethnocentrism), one new mathematics model (Voronoi), one new physics model (DLA Simple), two new computer science models (Perceptron, Artificial Neural Net), two new biology/system dynamics models (Tabonuco Yagrumo, Tabonuco Yagrumo Hybrid), four new code examples (Moore & Von Neumann Example, Intersecting Lines Example, Diffuse Off Edges Example, Tie System Example), five new HubNet activities (Bug Hunters Camouflage, Walking, Disease Doctors, Function, Guppy Spots)

How to Contribute and/or share your models

We encourage users to share your models with the NetLogo user community. Contributed models will be credited to the author. You may now upload your models through our web site. The web site will automatically create a web page for your model. If you wish to do so, try our NetLogo Model Upload Page. We have also added a URL submission page, if you prefer to host the model yourself, Model URL Submission Page

You may also wish to send us your models for possible inclusion in the Models Library.

Sample Models

Art
Diffusion Graphics
Fireworks
Follower
Optical Illusions
Sound Machines
Geometron Top-Down (unverified)
Kaleidoscope (unverified)
Biology
AIDS
Ant Lines
Ants
Autumn
Daisyworld
Disease Solo
Evolution
Altruism
Bug Hunt Camouflage
Bug Hunt Speeds
Cooperation
Echo
Genetic Drift
GenDrift P global
GenDrift P local
GenDrift T interact
GenDrift T reproduce
Mimicry
Peppered Moths
Sunflower Biomorphs
Divide The Cake (unverified)
Fireflies
Flocking
Fur
Heatbugs
Moths
Muscle Development
Rabbits Grass Weeds
Shepherds
Simple Birth Rates
Slime
Sunflower
Termites
Tumor
Algae (unverified)
Honeycomb (unverified)
Plant Growth (unverified)
Tabonuco Yagrumo Hybrid (unverified)
Tabonuco Yagrumo (unverified)
Wolf Sheep Stride Inheritance (unverified)
Virus
Wolf Sheep Predation
Chemistry & Physics
Chemical Reactions
Acids and Bases
Buffer
Strong Acid
Diprotic Acid (unverified)
Weak Acid
B-Z Reaction
Enzyme Kinetics
Radical Polymerization
Simple Kinetics 1
Simple Kinetics 2
Simple Kinetics 3
Chemical Equilibrium (unverified)
Crystallization
Crystallization Basic
Crystallization Directed
Crystallization Moving
Diffusion Limited Aggregation
DLA Alternate Linear
DLA Alternate
DLA Simple
DLA
Electromagnetism
Ising
NIELS
Electrostatics
Ohm's Law
Parallel Circuit
Series Circuit
Gas Chromatography
GasLab
GasLab Adiabatic Piston
GasLab Atmosphere
GasLab Free Gas
GasLab Gas in a Box
GasLab Gravity Box
GasLab Isothermal Piston
GasLab Maxwells Demon
GasLab Single Collision
GasLab Two Gas
GasLab Circular Particles (unverified)
GasLab Heat Box (unverified)
GasLab Moving Piston (unverified)
GasLab Pressure Box (unverified)
GasLab Second Law (unverified)
Heat
Boiling
Heat Diffusion (unverified)
Thermostat (unverified)
MaterialSim
MaterialSim Grain Growth (unverified)
Mechanics
Random Balls
Gravitation (unverified)
N-Bodies (unverified)
Polymer Dynamics
Radioactivity
Decay
Reactor Top Down (unverified)
Reactor X-Section (unverified)
Sand
Solid Diffusion
Turbulence
Scattering (unverified)
Waves
Lattice Gas Automaton
Rope
Doppler (unverified)
Raindrops (unverified)
Speakers (unverified)
Wave Machine
Computer Science
Cellular Automata
Brians Brain
CA 1D Elementary
CA 1D Simple Examples
CA 1D Rule 110
CA 1D Rule 250
CA 1D Rule 30 Turtle
CA 1D Rule 30
CA 1D Rule 90
CA 1D Totalistic
CA Continuous
CA Stochastic
Life Turtle-Based
Life
Dining Philosophers
Hex Cell Aggregation
Painted Desert Challenge
Particle Swarm Optimization
Particle Systems
Particle System Basic
Particle System Flame
Particle System Fountain
Particle System Waterfall
Simple Genetic Algorithm
Turing Machine 2D
Artificial Neural Net (unverified)
Merge Sort (unverified)
Perceptron (unverified)
Vants
Wandering Letters
Earth Science
Climate Change
Continental Divide
Erosion
Fire
Grand Canyon
Percolation
Games
Frogger
Lunar Lander
Minesweeper
Pac-Man
Planarity
Tetris
Pac-Man Level Editor (unverified)
Mathematics
3D Solids
3D Surface
Color Fractions
Conic Sections 1
Conic Sections 2
Division
Fractals
Koch Curve
L-System Fractals
Mandelbrot
Sierpinski Simple
Star Fractal
Tree Simple
Mousetraps
Probability
Binomial Rabbits
Birthdays
Galton Box
ProbLab
Dice Stalagmite
Prob Graphs Basic
Random Basic
Stochastic Patchwork
9-Block Stalagmite (unverified)
9-Blocks (unverified)
Central Limit Theorem (unverified)
Dice (unverified)
Equidistant Probability (unverified)
Expected Value Advanced (unverified)
Expected Value (unverified)
Partition Perms Distrib (unverified)
ProbLab Genetics (unverified)
Random Basic Advanced (unverified)
Random Combinations and Permutations (unverified)
Shuffle Board (unverified)
Random Walk 360
Three Doors
Random Walk Left Right (unverified)
Pursuit
Rugby
Turtles Circling
PANDA BEAR Solo (unverified)
Surface Walking 2D (unverified)
Vector Fields
Voronoi
Networks
Diffusion on a Directed Network
Giant Component
Preferential Attachment
Small Worlds
Team Assembly
Virus on a Network
Social Science
AIDS
Altruism
Cooperation
El Farol
Ethnocentrism
Party
Rebellion
Rumor Mill
Scatter
Segregation
Simple Birth Rates
Team Assembly
Traffic Basic
Traffic Grid
Bank Reserves (unverified)
Cash Flow (unverified)
Divide The Cake (unverified)
El Farol Network Congestion (unverified)
Language Change (unverified)
Minority Game (unverified)
Prisoner's Dilemma
PD Basic Evolutionary (unverified)
PD Basic (unverified)
PD N-Person Iterated (unverified)
PD Two Person Iterated (unverified)
Traffic 2 Lanes (unverified)
Traffic Intersection (unverified)
Voting
Wealth Distribution
System Dynamics
Exponential Growth
Logistic Growth
Tabonuco Yagrumo Hybrid (unverified)
Tabonuco Yagrumo (unverified)
Wolf Sheep Predation (System Dynamics)
Wolf Sheep Predation (docked)

Curricular Models

For information on the curricula, see the CCL home page.

HubNet Computer Activities

For information about HubNet, click here.

Bug Hunters Camouflage
Code Examples
Template
Dice Stalagmite HubNet
Disease Doctors
Disease
Gridlock
Polling
Root Beer Game
Tragedy of the Commons HubNet
Function (unverified)
Gridlock Alternate (unverified)
Guppy Spots (unverified)
Investments (unverified)
Minority Game HubNet (unverified)
Oil Cartel Alternate (unverified)
Oil Cartel (unverified)
PANDA BEAR (unverified)
Polling Advanced (unverified)
Predator Prey Game (unverified)
Prisoners Dilemma HubNet (unverified)
Public Good (unverified)
Restaurants (unverified)
Sampler (unverified)
Walking (unverified)
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