
KesseractJS
I don't know my version or loader
KesseractJS
Welcome to the 4th dimension.
KesseractJS is a fork of KubeJS, continuing its development for 1.16.5. It backport a lot of different features from the newer versions, and even adds some that are not present at all in the original mod. The latter are documented on a dedicated wiki, and support for those are offered on our discord server, so don't be afraid to ask there.
This mod depends on a modified fork of the Rhino JS parser called Rhizo, please install it before use. We also highly recommend you use ProbeJS Legacy during script development for better IDE support.
This project was made as a collaboration between Hellish Mods, ZZZank, and MundM2007, with the occasional help from Team Potato. Thank you guys <3
Feature showcase
- Fake mod registration
// In startup_scripts
Platform.registerFakeMod("notarealmodid").displayName("Hello World!")
onEvent('item.registry', event => {
event.create('notarealmodid:thing')
})

- Backports
// Welcome to the future babyyyy
// Falling block type
onEvent('block.registry', event => {
event.create('metal_pipe').material('falling')
})
// Custom music discs (https://github.com/KubeJS-Mods/KubeJS/issues/491)
onEvent('item.registry', event => {
event.create('disc_14').song('jamiroquai:vitrual_insanity')
})
// thickTexture/thinTexture and textureThick/textureThin intercompatibility
onEvent('fluid.registry', event => {
event.create('you_dont_want_to_know')
.thickTexture(0xFF0000)
.textureThick(0xFF0000) // Both methods work!
})
// JsonIO
let data = JsonIO.read('kubejs/data.json')
JsonIO.write('kubejs/data.json', {recursion: data})
// + more!
- Fixes. Lots of 'em.

- Full drag-and-drop compatability with old Kube scripts
- Continuous updates. More in the future!
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.16.4, 1.16.5
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as kubejs-forge-1605.3.20-build.81.jar — drop this file into the mods folder
- Download size: 1.1 MB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.
