ModsFinder

BuddycardsJS

by Pagan

BuddycardsJS is a Forge addon for KubeJS that lets modpack developers and addon makers define custom Buddycards content from JSON files.

ForgeClient and serverAll rights reserved1.20.1

What it does

Content is defined in files placed in the kubejs folder. BuddycardsJS reads them and generates the assets and data a custom set needs, so custom sets, cards, packs, booster boxes and loot injections can be built without hardcoding them in Java. Textures are added alongside the JSON, and the generated files are handled on launch.

Its role is to work alongside KubeJS Buddycards, which makes it easier to define content in data. Installation requires the mods it depends on, the correct Minecraft Forge version, and placing the content files in the kubejs folder before launching the game. Files are published for Forge, for 1.20.1 only, and the environment is client and server, so the server and every player need it. The code is under All rights reserved and is not open source.

Key features

  1. Custom sets and cards

    Developers define new Buddycards sets and individual cards in JSON, with textures attached to each entry.

  2. Packs and booster boxes

    Custom card packs and booster boxes are described in data, so their contents can be changed without editing code.

  3. Loot injections

    Cards can be injected into loot tables through data files, so they appear as drops in the world.

  4. Generated assets

    The mod generates the remaining assets from the content files, so a developer only writes the definitions and textures.

Compatibility

Latest build for each game version and loader.

1.20.10.3.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Modpack development

Pack developers add Buddycards content to a modpack by dropping JSON and texture files into the kubejs folder.

Addon creation

Addon makers expand Buddycards with data-driven content and skip writing Java for each new set.

Who it’s for: Modpack developers and addon makers who want to expand Buddycards content through KubeJS scripts and data files rather than code.

How it compares

Full comparison

Create Buddycards is a Forge and NeoForge mod for 1.20.1 – 1.21.1 that is client and server and not open source, while BuddycardsJS is Forge only and built for 1.20.1 alone. Aquaculture Buddycards [Frontport] is a Forge mod for 1.20.1 with the same client and server environment, under All rights reserved. MoreJS: KubeJS Addon is a different kind of addon, covering Fabric, Forge and NeoForge for 1.18.2 – 1.21.1 and licensed under the GNU Lesser General Public License v3.0 only.

ModLoadersGame versionsEnvironmentUpdated
BuddycardsJSForge1.20.1Client and server2026-05-04
Create BuddycardsForge and NeoForge1.20.1 – 1.21.1Client and server2026-10-02
Aquaculture Buddycards [Frontport]Forge1.20.1Client and server2026-09-14
MoreJS: KubeJS AddonFabric, Forge and NeoForge1.18.2 – 1.21.1Client and server2025-10-13

Questions

Does BuddycardsJS require KubeJS?

Yes. BuddycardsJS is a KubeJS addon and needs the mods it requires installed on the correct Minecraft Forge version.

Does the server need BuddycardsJS installed?

Yes. Installation covers the server and each player's game.

Where are custom content files placed?

Content files go in the kubejs folder. Once they are there, the game picks them up on the next start and BuddycardsJS produces the generated files from them.

What the author says

BuddycardsJS is a KubeJS addon that adds support for creating Buddycards-style content through JSON and textures. It is built to work alongside KubeJS and Buddycards, making it easier to define custom content without hardcoding every item manually.
Pagan, on the Modrinth page

Official listing

Owner
Pagan
Published
2026-04-22
Updated on Modrinth
2026-05-04
Facts verified
2026-10-15
Open on ModrinthCompare