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ct.js

Free 2D game editor with a visual interface and code

Game Engines & Frameworks ★ 344 stars Easy setup MIT

ct.js is a free, open-source 2D game engine and editor that combines a visual interface with JavaScript coding for making browser and desktop games. It is designed to be approachable for beginners and educators.

Official siteSource code

Key features

  • Visual 2D game editor
  • JavaScript coding
  • Beginner and education friendly
  • Browser and desktop export

Strengths

  • Released under the MIT license
  • Easy to set up — beginner-friendly
  • Written in TypeScript
  • Tiny footprint — runs in 256 MB RAM

Is ct.js secure?

OSV.dev has no published security advisories for ct.js's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

ct.js replaces

Self-hosted GameMaker Studio alternatives

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SelfHostIndex: 63 · good

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