# Cytoid/Cytoid

A community-driven touchscreen music game.

Repository: https://github.com/Cytoid/Cytoid
Canonical: https://ross.abutalabs.com/products/cytoid
Homepage: https://cytoid.io
Language: C#
License: GPL-3.0
License Family: copyleft
Topics: unity, chart, community, music-game, game, customization, cytus
Last push: 2026-08-26T17:09:40+00:00

## Health v2 (maintenance only)
Score: 81/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 47, longevity 100
- inputs: {"age_days": 3323, "days_push": 7, "days_rel": 276, "gap_med": 73.0, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1119, forks 129 (observed 2026-08-28T04:03:39.378291+00:00)

## What it is
Cytoid is a community-driven touchscreen rhythm music game where players download and play user-created charts, available on iOS and Android. It is built on a Unity gameplay core embedded via a Flutter plugin, with a large online library of over 13,000 community levels.

## Use cases
- play community-made rhythm game charts on my phone
- create and share custom music game levels
- find a free Cytus-like music game for iOS or Android
- join charting contests for a rhythm game
- play user-generated music levels with difficulty ratings

## When to choose
- you want a free, open-source touchscreen rhythm game with a huge community level library
- you want to create or play custom charts with community difficulty ratings
- you want a Cytus-inspired music game on mobile

## When to avoid
- you need a desktop or console rhythm game
- you want a game with official licensed content rather than community charts
- you need a non-touchscreen input method

## Facets
- artifact type: application
- maturity: active
- function: game-engine, gui
- domain: gaming-tools, entertainment, cross-platform
- platform: game-engine, cross-platform
- tags: music-game, rhythm-game, touchscreen, custom-charts, community-levels, cytus-like, unity, flutter, android, ios

## Member repositories
- Cytoid/Cytoid (main) score 81

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:39.378291+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 2026-08-30T06:41:08.593210+00:00, confidence not recorded.
  - readme: https://github.com/Cytoid/Cytoid (fetched 2026-08-28T04:03:39.378291+00:00, sha b82a2b3e6a1e)
  - homepage: https://cytoid.io (fetched 2026-08-29T12:45:01.857498+00:00, sha 8d9d1e7e7a63)
  - site_page: https://cytoid.io/collections/getting-started (fetched 2026-08-29T12:45:01.868555+00:00, sha 342f1e0c088c)
  - site_page: https://cytoid.io/posts/events-summer-festival (fetched 2026-08-29T12:45:01.866790+00:00, sha c3f98e84c6fc)
- Data as of 2026-08-30T08:39:29.467469+00:00.