# NetLogo/NetLogo

turtles, patches, and links for kids, teachers, and scientists

Repository: https://github.com/NetLogo/NetLogo
Canonical: https://ross.abutalabs.com/products/netlogo
Homepage: https://netlogo.org
Language: Scala
License: GPL-2.0
License Family: copyleft
Topics: logo, agent-based-modeling, netlogo
Last push: 2026-08-31T20:55:22+00:00

## Health v2 (maintenance only)
Score: 89/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 69, longevity 100
- inputs: {"age_days": 5434, "days_push": 2, "days_rel": 124, "gap_med": 44.5, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1179, forks 271 (observed 2026-09-01T02:13:55.865676+00:00)

## What it is
NetLogo is a widely used agent-based modeling environment written in Scala, letting users program turtles, patches, and links to simulate complex systems. It serves both classrooms (elementary through university) and scientific research, with a desktop app, web version, and a models library.

## Use cases
- build agent-based models of epidemics or traffic
- teach computational modeling to students
- simulate predator-prey ecosystems
- explore emergent behavior in complex systems
- run reproducible simulation experiments for research
- create interactive models for the classroom with HubNet

## When to choose
- you need a low-threshold, high-ceiling agent-based modeling tool
- you want a mature platform with a large models library and community
- you need both educational ease and research-grade capabilities
- you want cross-platform desktop and web modeling

## When to avoid
- you need high-performance large-scale simulations beyond NetLogo's JVM limits
- you want general-purpose programming rather than modeling
- you need a lightweight library to embed in another app
- you require permissive licensing (GPL-2.0)

## Facets
- artifact type: application
- maturity: active
- function: simulation, programming-language, gui, interpreter
- domain: simulation, education, cross-platform
- platform: cross-platform, jvm, browser
- tags: agent-based-modeling, logo, complex-systems, modeling, scala, algorithms, desktop

## Member repositories
- NetLogo/NetLogo (main) score 89

## Provenance
- Observed fields: from GitHub, fetched 2026-09-01T02:13:55.865676+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:26:10.435048+00:00, confidence not recorded.
  - readme: https://github.com/NetLogo/NetLogo (fetched 2026-09-01T02:13:55.865676+00:00, sha 431bfbf4bfd0)
  - homepage: https://netlogo.org (fetched 2026-08-29T12:32:47.197409+00:00, sha 65431b147856)
  - site_page: https://www.netlogo.org/about (fetched 2026-08-29T12:32:47.206457+00:00, sha 13ff2f85031b)
  - site_page: https://docs.netlogo.org/faq.html (fetched 2026-08-29T12:32:47.208497+00:00, sha d2d06cbf6ca7)
- Data as of 2026-08-30T08:39:29.467469+00:00.