Meet ct.js,your new 2D game editor
ct.js makes learning programming fun and game development easy by its visual tools, good docs and flexible, modular library.
It is free, open-source, and is loved by hobbyists, professionals, teachers, and their students.
Download v3.2.0
Smooth workflow
Bad tools hinder your performance. Ct.js is designed to be like a brush with which you create games, not to be an enemy you will fight with.
Beginner friendly
ct.js bundles come with offline docs, tutorials, and editable examples and demos. The code editor highlights errors and provides documentation right while writing your code.
Write in beginner-friendly CoffeeScript, in JavaScript, the web standard, or even in TypeScript — depending on your skills and needs.
Powerful
ct.js is based on Pixi.js, works on WebGL and provides great performance in browsers and desktop environments. Modules add new powers, and when ct.js is not enough, you can add any JS code or library.
Create games of any genre
Ill Fated
A vampire-survivor-esque shooter where your character only grows weaker through time. Fend off endless monsters and see how many curses you can get before you succumb to the foes.
Vacation of Fusion
A light-hearted island-building game where you mix elements to create new tiles. Features creative mode, cartoony graphics, and a selfie mode!
Welcome to the VOID
A story about rebooting the universe. Swim through the endless dark cosmos, engage in space combat, land on planets for expedition missions and explore the lost technologies.
ct.js has everything you need to build a game
Room / Level editor with tile support
Integrated code editor with error handling
Arcade collisions and 2D physics libraries
Framed & skeletal animations
Music & sound manager
Particle system, shaders, and lighting system
Notes & docs in a side panel, on every screen
Ability to use custom JavaScript
Easy packing and deploying
It's free!
Our Partner

Mini Jam is an open recurring game jam that is held every two weeks on itch.io. Join their Discord server or visit their official site!