A downloadable game engine for Windows, macOS, and Linux

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Warning: this version of ct.js is unstable!

If you want a stable, reliable, production-ready experience, do use the regular ct.js version:

But if you prefer to live on a bleeding edge… (  ͜͡°ʖ ͡°)

This page will have nightly versions that are built from the develop branch from our repository. It means that you will get the latest features, improvement, bug fixes, and new bugs daily, out of the oven.

We give no warranties or liability on whether these releases will work for you or not. If your project got broken, this is solely your fault. (Do contact us at Discord if you are in trouble, though. We will try to help.)

As new versions get released insanely often, using itch.io app is strongly recommended, as it will auto-update ct.js Nightly for you.


Discuss new features and give suggestions at our Discord server:

Bug reports

Send your bug reports at GitHub, as there we can reliably track all of them.

Updated 15 days ago
StatusIn development
PlatformsWindows, macOS, Linux
Rated 5.0 out of 5 stars
AuthorCosmo Myzrail Gorynych
Tags2D, ctjs, Experimental, GameMaker


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Click download now to get access to the following files:

ct.js Nightly for Windows x64 313 MB
Version 694afdf0
ct.js Nightly for Windows x32 307 MB
Version 694afdf0
ct.js Nightly for Linux x64 325 MB
Version 694afdf0
ct.js Nightly for Linux x32 333 MB
Version 694afdf0
ct.js Nightly for OSX 316 MB
Version 694afdf0