# facebookarchive/fbctf

Platform to host Capture the Flag competitions

Repository: https://github.com/facebookarchive/fbctf
Canonical: https://ross.abutalabs.com/products/fbctf
Language: Hack
License: NOASSERTION
License Family: other
Topics: ctf, ctf-framework
Archived: true
Last push: 2023-12-05T12:29:38+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3824, "days_push": 1002, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6548, forks 1297 (observed 2026-08-28T04:09:45.141123+00:00)

## What it is
FBCTF is a self-hosted platform for running Jeopardy and King of the Hill style Capture the Flag security competitions. It supports team registration, challenge administration, and scoring for events from a few participants to several hundred.

## Use cases
- host a capture the flag competition
- run a jeopardy-style ctf event
- organize a king of the hill hacking competition
- set up a ctf platform for a security class
- run an online or in-person ctf for hundreds of teams

## When to choose
- you need a proven, full-featured platform to host a CTF competition
- you want both Jeopardy and King of the Hill game modes
- you can self-host on Linux with HHVM

## When to avoid
- you need an actively developed project - it is archived by Facebook
- you prefer a modern PHP/Python stack instead of Hack/HHVM
- you need commercial use - it is licensed CC BY-NC 4.0

## Facets
- artifact type: application
- maturity: maintenance
- function: security, web-framework, self-hosted
- domain: security, education, web-development
- platform: self-hosted
- tags: ctf, capture-the-flag, jeopardy, king-of-the-hill, hacklang, facebook-archive, competition-platform, linux, web-server

## Member repositories
- facebookarchive/fbctf (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:45.141123+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 2026-08-29T17:44:04.707100+00:00, confidence not recorded.
  - readme: https://github.com/facebookarchive/fbctf (fetched 2026-08-28T04:09:45.141123+00:00, sha 7945c86ffcb0)
- Data as of 2026-08-30T08:39:29.467469+00:00.