ModsJava
Gatewaysjs Mod (1.21.1, 1.20.1) – Build Custom Mob Wave Arenas and Boss Battles
Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.
⬇ DownloadGatewaysjs Mod extends GatewaysToEternity with KubeJS script integration. It lets you create custom mob waves, arena rules, and dynamic rewards using JavaScript code. The mod connects gateway events directly to KubeJS so you can trigger sounds, spawn items, or customize boss bar visuals during fights.
Features:
- Event Listeners: Triggers scripts when gateways open, start waves, end waves, spawn mobs, or fail.
- Custom Gateway Pearls: Lets you build unique gateway items with custom colors, sizes, rules, and wave lineups.
- Entity Modifiers: Applies potion effects, custom gear sets, NBT data, and stat changes to wave mobs.
- Adds dynamic reward pools that give loot whenever players clear waves.
- Allows you to customize gateway entity textures and boss bar display styles.
- Replaces older gateway registrations automatically when using matching IDs.
- Supports ProbeJS code autocompletion for attributes, effects, and modifier operations.
Gatewaysjs Mod Download Links
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1
- 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: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Downloads as 508149.mcaddon
- Download size: 94 KB
- Download link checked 25 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.