ct-js/ct-js-old
⚠️ Old repository of ct.js app. New repository here: https://github.com/ct-js/ct-js observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 0
- Release rhythm 40
- Longevity 100
Flags: archived
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: 21
- age_days: 2579
- days_rel: 668
- days_push: 654
- n_releases_24m: 2
Adoption not part of the score
1630 stars · 125 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Ct.js is a free, open-source 2D game engine and IDE built on PixiJS/WebGL for making HTML5, desktop, and mobile games. It offers visual level, UI, tilemap, and particle editors, event-based scripting in JavaScript, TypeScript, or the visual Catnip language, and one-click export for web and desktop.
Use cases
- make a 2d html5 game without heavy coding
- build browser games with a visual level editor
- teach game development and programming to students
- create pixelart games with tilemaps and particle effects
- export a 2d game to desktop and web from one project
- prototype game mechanics with event-based scripting
When to choose
- you want a free, beginner-friendly 2D game engine with visual editors
- you target HTML5/WebGL with optional desktop exports
- you prefer visual scripting (Catnip) alongside JavaScript/TypeScript
- you need built-in tilemaps, physics, sound, and UI tools in one IDE
When to avoid
- you need 3D rendering or a 3D engine
- you require a fully code-first workflow without an IDE
- you need console (PS/Xbox/Switch) export support
- you want a headless engine library to embed in an existing build pipeline
Facets
application · maturity active
game-engine editor gui graphics animation gaming-tools cross-platform education cross-platform 2d-game-engine html5-games pixijs webgl visual-scripting level-editor tilemap-editor particle-systems ide catnip game-development desktop web-server javascript typescript
3 sources
- readme: https://github.com/ct-js/ct-js-old · fetched 2026-08-28 · baef2d35763f
- homepage: https://ctjs.rocks/ · fetched 2026-08-29 · 50b27081b457
- site_page: https://ctjs.rocks/changelog · fetched 2026-08-29 · 393245369e5f
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| ct-js/ct-js-old | main | 10 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem