Aether Portal
Java data pack listed for Minecraft 1.21. File opened and checked on 29 Sep 2026; downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
Aether Portal Structure
Features:
Activated (non-functial) Aether Portal spawning rarely in selected Biomes:
- Plains
- Snowy Plains
- Birch Forest
Loot in Aether Chest such as:
- Raw Copper 50% chance
- Copper Ingot 20% chance
- Glowstone Dust 10% chance
- Feather Falling II Book 10% chance
- Diamond 5% chance
- Aether Chicken Egg 2% chance
- Cloud 2% chance
Custom Items
Aether Chicken Egg: A custom item which is a blue egg having a 2% chance of being in the aether loot chest and when used, spawns a big cold chicken which has very low gravity and high jump strength
Cloud: A glowy cloud spawning in the aether loot chest, which when held in main or offhand applies a low gravity effect to the player and reduces all fall damage while being held
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.4, 1.21.5, 1.21.6
- 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 — see the MC Java Mods guides for the full walkthrough.
- Downloads as AetherPortal_Structure_v1.zip
- Download size: 379 KB
- Download link checked 19 Oct 2026 — working
These come from our own check of the pack file, not from the source page.